Products

Explore eMAI product systems for corrosion control, scale inhibition, water treatment, drilling, oil and gas gathering, flow assurance, oil spill response, and surfactants.

Product Catalogue

• COI Dedicated Corrosion Inhibitor Series

  The eMAI™ COI Series corrosion inhibitors are specifically developed for media such as lactic acid, sulfamic acid, and acetic acid. Composed mainly of composite quinoline-based quaternary ammonium salts, they incorporate abundant adsorption sites in the molecular structure and form an extremely strong chemisorbed film on metal surfaces, effectively reducing hydrogen-ion corrosion of steel parts. The products are used for acid pickling, descaling, and rust removal in power generation, chemical processing, boilers, refineries, electroplating, deep oilfield acidizing, and precision equipment cleaning, featuring low dosage, low corrosion rates, and high temperature resistance.

• CI Acidizing Corrosion Inhibitor Series

  The eMAI™ CI Series corrosion inhibitors are formulated from modified imidazolines, organic quaternary ammonium salts, synergists, and other components. The nitrogen-containing heterocycles in the molecular structure adsorb firmly onto metal surfaces, forming a dense, network-like multi-layer protective film that blocks contact between the acid and the metal surface, slowing acid corrosion of oil and gas well tubing strings and downhole equipment. Applications include hydrochloric acid acidizing, mud acid (HCl/HF) acidizing, wellbore cleaning, tubing descaling, and formation blockage removal, as well as acid pickling of chemical equipment, boiler descaling, and metallurgical machinery—across a wide range of operating conditions and environments. The products deliver strong corrosion inhibition, effectively suppressing metal substrate corrosion under high-temperature, strong-acid conditions with virtually no pitting; they also feature high temperature resistance, low treating concentrations, good compatibility with other additives, and safety with environmental friendliness.

• CIVA Corrosion Inhibitor Series for Diverting Acid

  The eMAI™ CIVA Series corrosion inhibitors for diverting acid are formulated from multiple composite quaternary ammonium salt components. The nitrogen-containing heterocycles in the molecular structure adsorb firmly onto metal surfaces, forming a dense, network-like multi-layer protective film that not only blocks contact between the acid and the metal surface but also reduces competitive adsorption of VES surfactants on steel surfaces. The products are mainly used in betaine-based and cationic VES diverting acid acidizing systems. In addition to strong corrosion inhibition, the products show good compatibility with VES diverting agents and iron-control agents, while featuring high temperature resistance, low treating concentrations, good compatibility with other additives, and safety with environmental friendliness.

• CleaW50 Water Clarifier

  The water clarifier eMAI™ CleaW50 is composed of polycationic macromolecular compounds. Through charge neutralization, adsorption bridging, and sweep-floc entrapment, it efficiently removes suspended particles, colloids, and emulsified oil from water. Densely distributed positively charged groups on its linear molecular chains compress the electric double layer and destabilize colloids, while the long-chain structure promotes aggregation of fine particles into dense flocs for rapid solid-liquid separation. The product features low dosage, fast floc settling, high effluent clarity, and small sludge volume, with strong tolerance to pH fluctuations and no secondary pollution. Applications: Oilfield produced water treatment: Widely used in onshore and offshore oilfield produced-water treatment, effectively removing emulsified oil, suspended solids, and polymer residues so the effluent meets reinjection or discharge standards. Advanced petrochemical wastewater treatment: Suitable for oily wastewater and polymer-containing wastewater from refineries and chemical plants, with particularly significant removal of refractory organics and colloids. Industrial circulating water side-stream filtration: For emergency treatment of high-turbidity makeup water or water quality deterioration caused by system leakage, rapidly restoring water clarity. Municipal wastewater upgrading: Used as a chemical phosphorus-removal aid or coagulant to improve SS and TP removal rates and ensure effluent compliance.

• PHMB Polyguanidine Biocide

  eMAI™ PHMB (polyhexamethylene biguanide) is a polymeric biocide. Its highly active guanidine groups give the polymer a positive charge, allowing it to readily adsorb onto bacterial and viral surfaces, inhibiting their division and rendering them incapable of reproduction. It can also act on the phospholipid bilayer in the cytoplasm through transmembrane transport, binding with negatively charged phosphate groups to alter the selective permeability of the cell membrane and kill microorganisms. It provides broad-spectrum antimicrobial action that is safe, stable, non-corrosive, highly effective, and long-lasting. Applications: Medical and hygiene: Used for surgical hand disinfection and skin/mucous membrane cleansing; can also be formulated into wipes and feminine washes—effective against bacteria, fungi, and viruses. Food and drinking water: For disinfection of food processing equipment and pipelines, as well as sterilization and algae control in drinking water and swimming pools—low residue and safe. Industrial and aquaculture: Controls bacterial diseases of fish and shrimp in aquaculture; serves as an antimicrobial finishing agent in textiles and papermaking; also used in oil production and wastewater treatment. Daily-use products: Added to laundry detergents and shampoos for mildew and dandruff control, or used for air and surface disinfection in public places (e.g., vehicles, aircraft).

• PHMG Polyguanidine Biocide

  eMAI™ PHMG (polyhexamethylene guanidine hydrochloride) is a polymeric biocide. Its highly active guanidine groups give the polymer a positive charge, allowing it to readily adsorb onto bacterial and viral surfaces, inhibiting their division and rendering them incapable of reproduction. It also forms a film that blocks the respiratory channels of microorganisms, causing rapid suffocation and death. It features low toxicity, no irritation, and good long-term storage stability. Applications: Medical and hygiene: Used for surgical hand disinfection and skin/mucous membrane cleansing; can also be formulated into wipes and feminine washes—effective against bacteria, fungi, and viruses. Food and drinking water: For disinfection of food processing equipment and pipelines, as well as sterilization and algae control in drinking water and swimming pools—low residue and safe. Industrial and aquaculture: Controls bacterial diseases of fish and shrimp in aquaculture; serves as an antimicrobial finishing agent in textiles and papermaking; also used in oil production and wastewater treatment. Daily-use products: Added to laundry detergents and shampoos for mildew and dandruff control, or used for air and surface disinfection in public places (e.g., vehicles, aircraft).

• 1227 Biocide

  eMAI™ 1227 (dodecyl dimethyl benzyl ammonium chloride) is a cationic quaternary ammonium surfactant. It adsorbs strongly onto bacterial surfaces and denatures proteins to achieve biocidal action. It offers broad-spectrum, highly effective sterilization and algae control, effectively controlling bacterial and algal proliferation and slime growth in water, while also providing good slime-stripping action and certain dispersing and penetrating effects, as well as some degreasing, deodorizing, and corrosion-inhibiting capabilities. Applications: Industrial water treatment: Widely used in circulating cooling water systems in the petroleum, chemical, and power industries to control bacterial and algal growth—particularly effective against sulfate-reducing bacteria—and also suitable for oilfield water injection systems. Textile dyeing and printing: Used as a leveling agent, softener, and antistatic agent, making fibers fluffy and attractive while providing antimicrobial and anti-mildew protection for fabric storage. Medical and public disinfection: Suitable for sterilization and immersion disinfection in hygiene and medical fields, wound infection washing, medical instrument disinfection, and sanitary disinfection of swimming pools and public places. Other fields: Spray disinfection of grain warehouses and livestock/poultry housing, and preservation of pastes, gelatin, and photographic film.

• BK Triazine Biocide

  The biocide eMAI™ BK is an industrial broad-spectrum biocide whose main component is hydroxyethyl hexahydro-s-triazine. With low toxicity, high efficiency, and high temperature and alkali resistance, it is widely used in oilfield produced-fluid treatment, metalworking fluids, coatings, papermaking, and wastewater treatment. The product features broad-spectrum high efficacy, excellent stability, long-lasting bacteriostasis, good compatibility, and a wide applicable pH range.

• C/MIT Isothiazolinone Biocide

  The eMAI™ C/MIT isothiazolinone biocide series is composed of 5-chloro-2-methyl-4-isothiazolin-3-one (CMIT) and/or 2-methyl-4-isothiazolin-3-one (MIT). It exerts its biocidal action by breaking the bonds of bacterial and algal proteins; upon contact with microorganisms, isothiazolinone rapidly and irreversibly inhibits their growth, leading to microbial cell death. It therefore has strong inhibitory and killing effects against common bacteria, fungi, and algae—a broad-spectrum, highly effective, low-toxicity, non-oxidizing biocide that simultaneously inhibits bacteria, fungi, and mold. It offers lower use-cost than other biocides on the market, excellent physical and chemical compatibility, usability over a very wide pH range, high stability even under alkaline conditions, and natural degradation into non-toxic substances without polluting the environment. Applications include wastewater treatment, iron and steel smelting, oilfield water injection, refineries, thermal power plants, large fertilizer plants, paper mills, light textiles, water-based coatings, industrial cleaning, household chemicals, papermaking, pesticides, and concrete admixtures.

• ATMP Scale Inhibitor

  The scale inhibitor eMAI™ ATMP is an organophosphonic acid anionic corrosion and scale inhibitor. Its molecular structure contains three phosphonic acid groups and can dissociate into six positive and negative ions in water, forming stable polydentate chelates with calcium and magnesium ions that remain loosely dispersed in water, effectively preventing the formation of carbonate and sulfate scales. It also provides chelation, threshold inhibition, and lattice distortion effects, with good synergistic performance with polyphosphates, polycarboxylic acids, and nitrites. Applications: Used as a scale and corrosion inhibitor for circulating cooling water and boiler water; particularly suitable as a no-pH-adjustment scale and corrosion inhibitor in alkaline circulating cooling water. For treatment of oilfield reinjection water with high barium ion content. For scale and corrosion treatment of medium- and low-pressure boilers. For central air-conditioning water systems: prevents scaling in cooling towers and heat exchangers. Also used as a metal cleaner, detergent additive, metal ion masking agent, cyanide-free electroplating additive, and precious metal extractant.

• BHMTPMPA Scale Inhibitor

  The scale inhibitor eMAI™ BHMTPMPA is a high-efficiency organophosphonate multidentate chelating scale inhibitor. With multiple phosphonic acid groups in its molecular structure, it delivers excellent water solubility and thermal stability over a wide pH range and at temperatures up to 120°C. Its extremely high chelation stability for calcium ions means it resists precipitation even in high-hardness water, making it especially suitable for high-calcium water treatment. It significantly inhibits calcium carbonate scale and sulfate scales (including barium sulfate and strontium sulfate). Applications: Industrial circulating cooling water: As a core scale and corrosion inhibiting component for high cycles-of-concentration systems; often compounded with polycarboxylate dispersants for enhanced performance. Oilfield injection water treatment: Particularly suitable for high-salinity, high calcium/magnesium oilfield reinjection water systems, effectively preventing scaling in oil-bearing formations and pipelines. Boiler water and reverse osmosis systems: Used in low-pressure boiler feedwater and RO pretreatment to prevent scaling on heated surfaces; dosage must be strictly controlled to avoid organic carbon contamination. Other fields: Used as a chelating agent for textile dyeing and printing, a peroxide stabilizer, and a concrete additive.

• DTPMPA Scale Inhibitor

  The scale inhibitor eMAI™ DTPMPA is an organophosphonate scale inhibitor whose molecular structure contains multiple phosphonic acid groups and nitrogen atoms. It can dissociate into ten positive and negative ions in water, forming stable polydentate chelates with di- and trivalent metal ions; it can also induce lattice distortion in certain deposits, producing a threshold effect that effectively prevents scaling by sparingly soluble calcium and barium salts under high pH and high hardness conditions. Applications: Used as a scale and corrosion inhibitor for circulating cooling water and boiler water; particularly suitable as a no-pH-adjustment inhibitor in alkaline circulating cooling water. For treatment of oilfield reinjection water with high barium ion content. For scale and corrosion treatment of medium- and low-pressure boilers. For central air-conditioning water systems: prevents scaling in cooling towers and heat exchangers. Also used as a peroxide stabilizer (especially effective for hydrogen peroxide stabilization under high-temperature conditions), a chelating agent for textile dyeing and printing, a pigment dispersant, an oxygen delignification stabilizer, a trace-element carrier in fertilizers, and a concrete additive. Also widely applied in papermaking, electroplating, metal pickling, and cosmetics.

• EDTMP(S) Scale Inhibitor

  The scale inhibitor eMAI™ EDTMP is a widely used water quality stabilizer and an important chelating agent. In aqueous solution it dissociates into eight pairs of positive and negative ions, forming bis-five-membered-ring metal chelates with Ca²⁺, Mg²⁺, Fe²⁺, Fe³⁺ and other metal ions that remain loosely dispersed in water without precipitating; meanwhile, crystals can adsorb the negatively charged inhibitor molecules and incorporate them into scale crystals, distorting the lattice and thereby inhibiting carbonate and sulfate scales. Its salts are generally liquids. Applications: Circulating cooling water systems: As a cathodic corrosion inhibitor and scale inhibitor, it effectively chelates calcium and magnesium ions and significantly inhibits calcium sulfate and barium sulfate scales. Boiler water treatment: Prevents scaling and corrosion of boilers and pipelines; suitable for internal water treatment of low-pressure boilers. Oilfield water injection: Remains stable and resists hydrolysis in high-hardness, high-alkalinity water, preventing scaling of injection pipelines and protecting equipment. Electroplating and surface treatment: Replaces highly toxic cyanides in alkaline copper and zinc plating, stabilizing metal ions in the bath and improving coating brightness and adhesion. Metal cleaning and polishing: High-purity electronic-grade EDTMP is used for cleaning semiconductor wafers and copper foil, removing trace metal impurities and improving surface finish. Textile dyeing and printing: Serves as an oxygen-bleach stabilizer and water softener, chelating catalytic ions such as iron and copper to prevent premature hydrogen peroxide decomposition and stabilize the bleaching process, while preventing metal ions from reacting with dyes to improve dye uptake and color vibrancy.

• HEDP Scale Inhibitor

  The scale inhibitor eMAI™ HEDP is an organophosphonic acid corrosion and scale inhibitor. Its molecular structure contains two phosphonic acid groups and dissociates into four positive and negative ions in water. It forms stable complexes with metal ions such as iron, copper, and zinc and can dissolve oxides on metal surfaces; it also chelates calcium ions to form six-membered-ring chelates with a good threshold effect, and offers good synergistic performance with polyphosphates, polycarboxylic acids, and nitrites. The product is structurally stable and highly temperature resistant—after 216 h at 250°C its hydrolysis rate is only 50%. It is also suitable for medium-to-high hardness and alkaline water qualities. Applications: Scale and corrosion inhibition for industrial circulating cooling water systems in power, chemical, metallurgical, and fertilizer industries, as well as medium- and low-pressure boilers, oilfield water injection, and oil pipelines. In light and textile industries: as a cleaning agent for metals and non-metals, a peroxide stabilizer and color-fixing agent in bleaching and dyeing, a complexing agent for cyanide-free electroplating, and a carrier for radioactive elements in pharmaceuticals. Suitable for severe-cold regions in winter; particularly suitable as a cleaning agent for the electronics industry and as an additive in household chemicals.

• HPA Scale Inhibitor

  The scale inhibitor eMAI™ HPA is a high-efficiency, environmentally friendly scale inhibitor containing both phosphonic acid and carboxyl groups. With outstanding chelation and lattice distortion effects, it effectively complexes calcium, magnesium, barium, and other ions in water, disrupting salt crystallization conditions and preventing the deposition of calcium carbonate and other scales on pipe walls and equipment surfaces. The product features good chemical stability, resistance to hydrolysis, and acid/alkali corrosion resistance; its corrosion and scale inhibition performance is 5–8 times that of traditional HEDP and EDTMP. Applications: Industrial circulating cooling water systems: Widely used as a cathodic corrosion and scale inhibitor in circulating water systems across steel, petrochemical, power, and pharmaceutical industries to ensure safe equipment operation. Oilfield reinjection water treatment: Designed specifically for oilfield reinjection water; its excellent chelating ability prevents scaling in transport pipelines and corrosion of downhole equipment, improving injection system efficiency. Mineral processing and flotation separation: Used as an environmentally friendly depressant in the flotation separation of sphalerite and galena, effectively suppressing electrostatic interactions between serpentine and chalcopyrite to improve mineral recovery. Low-hardness, corrosion-prone water treatment: Particularly suited to the low-hardness waters of southern China; by increasing zinc salt solubility, it forms an excellent corrosion and scale inhibiting system when compounded with zinc salts.

• PBTCA50 Scale Inhibitor

  The scale inhibitor eMAI™ PBTCA50 is an organophosphonate scale inhibitor containing both phosphonic acid and carboxylic acid groups in its molecular structure. Under high-temperature, high-hardness, and high-pH water conditions—especially with high Fe³⁺ content—it delivers better scale inhibition than organic polyphosphonates. Compared with organic phosphates, its low phosphorus content makes it less prone to forming sparingly soluble calcium phosphonate. It also provides corrosion inhibition, acting as a high-efficiency corrosion inhibitor particularly at high dosages, and produces good synergistic effects when compounded with zinc salts and polyphosphates. The product is used for scale and corrosion inhibition in water treatment for petroleum, chemical, power generation, and industrial boilers, and as a chelating agent and metal cleaner in the detergent industry.

• AA-AMPS Polycarboxylate Scale Inhibitor

  eMAI™ AA-AMPS is an anionic polycarboxylate scale-inhibiting dispersant copolymerized from acrylic acid (AA) and 2-acrylamido-2-methylpropane sulfonic acid (AMPS). Its molecular structure combines carboxyl groups with strongly polar sulfonic acid groups, providing high calcium tolerance and effective scale inhibition and dispersion against calcium phosphate, calcium carbonate, calcium sulfate, zinc hydroxide, and iron oxide—particularly under high-pH, high-alkalinity, and high-hardness water conditions. Applications include industrial circulating cooling water, oilfield reinjection water with high barium and sulfate content, medium- and low-pressure boiler water, reverse-osmosis and seawater-desalination systems, textile dye dispersion and anti-redeposition, and scale control in papermaking systems.

• SC Chelating Descaling Agent

  The chelating descaling agent eMAI™ SC is composed mainly of multidentate carboxyl compounds—a non-acidic, environmentally friendly chelating descaler. Abandoning traditional strong-acid cleaning processes, it relies on the synergy of multiple high-efficiency composite chelating agents to safely and efficiently remove stubborn scales such as calcium carbonate, calcium sulfate, and barium sulfate through powerful complex solubilization and dispersion/stripping mechanisms. The product has an extremely low corrosion rate on metal equipment and is fully biodegradable. It can be used in oil and gas fields and downhole operations—for example, to remove refractory scales such as barium sulfate and strontium sulfate from oilfield wellbores, water injection networks, and production equipment—avoiding corrosion damage to tubing strings caused by strong acids.

• Polyamine Shale Inhibitor PI50

  The polyamine inhibitor eMAI™ PI50 is composed of polyamine macromolecular compounds. Its structural units adsorb strongly onto shale surfaces to form a hydrophobic protective film, effectively sealing micro-fractures, inhibiting hydration swelling and dispersion of mud shales, while improving the lubricity and rheological properties of drilling fluids. The product features strong inhibition, high thermal stability, good compatibility, and environmental friendliness, making it suitable for drilling operations in complex formations such as shale gas and tight oil. Applications: Shale gas/oil drilling: Used in water-based drilling fluid systems for shale formations, effectively inhibiting shale hydration swelling, spalling, and collapse to improve wellbore stability. Complex mud shale formations: Suitable for highly water-sensitive formations and fault fracture zones prone to wellbore instability, replacing conventional KCl/polymer systems. Slim holes and horizontal wells: Inhibits cuttings dispersion, reduces drilling fluid solids content, lowers the risk of stuck pipe, and ensures downhole safety. Environmentally friendly drilling fluid systems: Can serve as an alternative to oil-based drilling fluids, meeting inhibition requirements while reducing environmental risk.

• CL4 Drilling Fluid Cleaning Lubricant

  The eMAI™ CL4 drilling fluid cleaning lubricant is a high-efficiency cleaning chemical formulated from multiple surfactants, penetrants, and auxiliary agents. It effectively disperses, strips, and removes drilling fluid filter cake, oil film, and gel structures remaining on casing walls, wellbore walls, and drilling tool surfaces during drilling operations, and is suitable for wellbore cleaning and displacement operations in water-based, oil-based, and synthetic-based drilling fluid systems. The product can be used for wellbore and casing-wall cleaning before cementing to improve cement sheath/interface bonding strength; wellbore cleaning and filter-cake removal during drilling fluid displacement; casing degreasing; cleaning of surface equipment and pipelines; cleaning of drill pipes, bits, and downhole tools; and cleaning during conversion between water-based and oil-based drilling fluid systems. Product features: High-efficiency cleaning: Cleaning efficiency can exceed 90%, effectively removing drilling fluid residues from wellbore and casing surfaces. Broad applicability: Compatible with water-based, oil-based, and synthetic-based drilling fluid systems. Wettability reversal: Converts oil-wet interfaces to water-wet interfaces to improve interfacial bonding conditions. Environmental profile: Uses biodegradable raw materials and meets environmental requirements. Temperature resistance: Broad applicable temperature range, with product temperature resistance up to 200°C.

• PBR Non-Oxidizing Unplugging Agent

  eMAI™ PBR is a non-oxidizing chain-breaking unplugging agent designed for polymer-flooded and profile-control reservoirs. It addresses near-wellbore blockage caused by HPAM residues, phenolic-resin gels, chromium gels, guar gum, and guar-gum gels through catalytic chain scission and emulsifying dispersion, without strong oxidizing ingredients. The product reduces polymer-solution viscosity and disrupts the network structure of resins and asphaltenes. It does not cause strong oxidative corrosion to tubing, casing, or the formation rock framework, produces no free oxygen, and helps avoid formation sanding and emulsion blockage. It is especially suitable for high-temperature, high-salinity treatments and operations requiring strong protection of metal equipment.

• DFR Silicone Defoamer

  eMAI™ DFR is a high-performance composite defoamer based on modified polysiloxane and hydrophobic silica. Hydrophobic silica particles rapidly penetrate foam films, while the low surface tension of modified polysiloxane promotes rapid spreading and destroys foam elasticity, providing fast knockdown and sustained foam suppression. The product features rapid defoaming, long-lasting suppression, low dosage, non-toxicity, odorlessness, chemical stability, and acid/alkali resistance. It is suitable for foam control in industrial cleaning, water treatment, textile dyeing and printing, and papermaking systems.

• DF5212 Silicone-Free Defoamer

  eMAI™ DF5212 is a silicone-free defoamer formulated from fatty alcohol polyethers, esterified polyethers, dispersants, emulsifiers, and stabilizers. It maintains effective foam knockdown and suppression at low concentrations. The product contains no organosilicone or mineral oil, disperses readily in water, has good system compatibility, and is less likely to cause oil spots or cratering. It is suitable for water-based inks and pigment pastes, circulating water, sand washing, paint-spray wastewater, cleaning wastewater, sewage treatment, landfill-leachate biological treatment, multiple-effect evaporation, and petroleum-industry systems.

• FC Series Fluorocarbon Surfactants

  The eMAI™ FC Series fluorocarbon surfactants are specialty formulations based on perfluoro- or polyfluoroalkyl surfactants compounded with high-efficiency auxiliaries. Their fluorocarbon segments provide extremely low surface and interfacial tension, significantly reducing the interfacial tension between acid fluids and hydrocarbon-bearing formations and improving acid-fluid flow through the reservoir. The products are suitable for acidizing and fracturing, reservoir stimulation, unplugging, gas-well water-block removal, and wellbore cleaning. They feature high surface activity, good temperature and salt resistance, good compatibility with acid fluids and other additives, and low treating concentrations.

• OV153 Oil-Soluble Crude Oil Viscosity Reducer

  eMAI™ OV153 is a high-efficiency oil-soluble viscosity reducer designed for high-viscosity, high-wax, and high-resin/asphaltene crude oils. It is formulated from specialty nonionic surfactants, high-carbon polyacrylate copolymers, and light aromatic solvents, providing excellent oil solubility, penetration, and viscosity reduction. The product penetrates and disperses resin-asphaltene aggregates, disrupts their stacked structure, improves crude-oil mobility, reduces transport resistance, and helps prevent pipeline blockage. It is suitable for heavy-oil wellbore and reservoir treatments, gathering-pipeline viscosity reduction, and refinery feed pretreatment.

• DC45 Decarbonization Agent

  The main component of eMAI™ DC45 decarbonization agent is an activated sterically hindered organic amine compound—a composite, high-efficiency, selective CO₂ removal solvent. Through chemical absorption and regenerative desorption, it rapidly captures free gaseous carbon dioxide via a reversible coordination reaction, without adsorbing hydrocarbon gases such as methane and ethane, effectively improving natural gas purity. The product features high selectivity, low hydrocarbon co-absorption, resistance to oxidative degradation, and low heat of reaction; it tolerates trace hydrogen sulfide and entrained formation condensate, and does not blacken or degrade in long-term circulating service. The product is used for CO₂ removal in natural gas gathering/processing and refining processes, without affecting subsequent natural gas dehydration, export, or liquefaction processes.

• DS Desulfurization Agent

  The main component of eMAI™ DS desulfurization agent is hydroxyethyl hexahydro-s-triazine. Its molecular chains are rich in nitrogen atoms and contain active hydrogen atoms, giving it extremely strong nucleophilicity; it rapidly undergoes irreversible chemical reactions with sulfides such as hydrogen sulfide and mercaptans, forming thermodynamically stable, water-soluble thio compounds. Its outstanding desulfurization performance fundamentally eliminates the acute toxicity hazards and equipment corrosion risks posed by hydrogen sulfide, and the reaction products can be treated together with produced water or reinjected into the formation without causing pipeline scaling or blockage—effectively ensuring safe oil and gas field production and environmental compliance. The product is mainly used for sulfide removal in crude oil production, natural gas gathering/processing, and refining processes.

• KHI10 Kinetic Hydrate Inhibitor

  The eMAI™ KHI10 kinetic hydrate inhibitor is formulated from modified polyvinyl water-soluble copolymers, polar co-solvents, and low-temperature stabilizers—a low-dosage kinetic hydrate inhibitor. Mechanism: Nucleation inhibition: When nanoscale hydrate nuclei form from the oil-gas-water three phases under low temperature and high pressure, the agent's molecular segments rapidly adsorb onto the nuclei surfaces, occupying hydrogen-bonding sites of water molecules, blocking lattice bonding between water and hydrocarbon molecules such as methane, and preventing sustained growth of micro-nuclei; Steric barrier: Polymer molecules form a steric-hindrance film that isolates fine hydrate particles dispersed in the liquid phase, preventing inter-particle collision and agglomeration; Pipe-wall anti-adhesion: The agent adsorbs onto the inner walls of carbon steel pipelines, reducing hydrate-wall adhesion; even if trace microcrystals form, they are carried along by the flowing medium rather than depositing and causing pipe restriction or blockage. Unlike thermodynamic inhibitors, KHI10 requires no major changes to system temperature and pressure conditions, and its dosage is only 1/10 that of alcohol-based agents. Product features: Strong shear stability: Withstands multi-stage turbulent shear at chokes, elbows, and subsea risers in oil and gas pipelines; after 120 minutes of high-shear circulation, polymer chains remain intact with inhibition performance decay below 8%—suitable for long-distance shuttle pipelines; Broad media adaptability: Tolerates formation water with total salinity up to 220,000 mg/L and sour oil/gas media with H₂S ≤5 vol% and CO₂ ≤20 vol%, without salting-out or agent precipitation failure; Full chemical compatibility: Can be injected simultaneously with crude oil flow improvers, oilfield demulsifiers, corrosion inhibitors, and scale inhibitors—no flocculation, phase separation, or viscosity spikes after mixing, and no degradation of the original performance of each chemical; No interference with downstream processes: Does not stabilize oil-water emulsion layers in three-phase separators and does not affect crude electric desalting, wastewater flotation treatment, or light hydrocarbon recovery; degradation products contain no heavy metals or nitrogenous toxic substances, meeting offshore and onshore environmental discharge standards; Low-corrosion safety: Neutral to mildly acidic, non-corrosive to 20# carbon steel, 316L stainless steel, FRP, and duplex steel pipelines as well as pressure gauges, flow meters, and safety valves; static corrosion rate <0.02 mm/a, compliant with oil and gas equipment corrosion control specifications.

• FL30 Crude Oil Flow Improver

  The eMAI™ FL30 crude oil flow improver is composed mainly of ultra-high-molecular-weight oil-soluble polymers, specialty solvents, and stabilizers. By suppressing turbulence and improving fluid rheological characteristics, it effectively reduces the friction coefficient between the pipe inner wall and the crude oil, enabling higher flow rates at the same pumping power or lower pumping pressure at the same flow rate—thereby improving transport efficiency and reducing energy consumption. The product is suitable for onshore and offshore long-distance crude oil pipelines, gathering networks, and refinery feedstock systems; it increases pipeline throughput and reduces operating costs, with good thermal and shear stability. It has good compatibility with common crude oil treatment chemicals and does not affect downstream crude processing.

• Water Shut-off and Water Control Additive Products

  Additive solutions for oil well water shut-off and interlayer profile control.

• AC Ultra-Low Interfacial Tension Surfactant Series

  eMAI™ AC is a high-efficiency low interfacial tension surfactant composed mainly of anionic and nonionic surfactants. It is suitable for chemical flooding in oilfields at medium-to-high water-cut stages, binary/ternary combination flooding, imbibition oil recovery in low-permeability reservoirs, pressure-driven flooding, water flooding, and emulsification viscosity reduction of heavy crude oil; the product can also be used in specialty industrial cleaning.

• AS Ultra-Low Interfacial Tension Surfactant

  eMAI™ AS is a high-efficiency ultra-low interfacial tension surfactant composed mainly of petroleum sulfonates, nonionic surfactants, and specialty co-solvents. It is suitable for chemical flooding in oilfields at medium-to-high water-cut stages, binary/ternary combination flooding, imbibition oil recovery in low-permeability reservoirs, pressure-driven flooding, water flooding, and emulsification viscosity reduction of heavy crude oil; the product can also be used in specialty industrial cleaning.

• Oil Spill Dispersant COE

  The oil spill dispersant eMAI™ COE is composed mainly of composite nonionic surfactants and strong penetrating solvents. Its components significantly reduce oil-water interfacial tension and, through wetting, emulsification, and dispersion, break surface oil slicks into fine droplets dispersed into the water column—accelerating the natural spreading and biodegradation of the oil to rapidly clear marine oil spills, reduce environmental pollution, and protect marine ecology. The product maintains excellent emulsification and dispersion performance across a wide temperature range (-10°C to 50°C) and in waters of varying salinity. It is suitable for emergency response to sudden oil spill incidents in rivers, harbors, coastal waters, and ocean-going vessels, and is especially effective for spills of crude oil, fuel oil, and light oil products.

• VCI28 Vanadium Corrosion Inhibitor

  The vanadium corrosion inhibitor eMAI™ VCI28 is composed mainly of oil-based metal compounds and suspension dispersants. Its components react with vanadium in the fuel to form high-melting-point, chemically stable compounds, preventing the low-melting-point sodium vanadate salts produced during combustion of industrial fuel oil, heavy oil, and residual oil from causing high-temperature corrosion and molten-salt corrosion to gas turbine or boiler hot-section components—thereby extending equipment service life, reducing maintenance costs, and improving system operating stability and safety. The product maintains good stability at high temperatures (up to 550°C) and is suitable for various process water qualities and media conditions, especially in heavy oil processing, catalytic cracking, and coking units in the refining, chemical, and energy industries.

• Dodecyl Dimethyl Benzyl Ammonium Chloride

  eMAI™ 1227 (dodecyl dimethyl benzyl ammonium chloride) is a cationic quaternary ammonium surfactant. It adsorbs strongly onto bacterial surfaces and denatures proteins to achieve biocidal action. It offers broad-spectrum, highly effective sterilization and algae control, effectively controlling bacterial and algal proliferation and slime growth in water, while also providing good slime-stripping action and certain dispersing and penetrating effects, as well as some degreasing, deodorizing, and corrosion-inhibiting capabilities. Applications: Industrial water treatment: Widely used in circulating cooling water systems in the petroleum, chemical, and power industries to control bacterial and algal growth—particularly effective against sulfate-reducing bacteria—and also suitable for oilfield water injection systems. Textile dyeing and printing: Used as a leveling agent, softener, and antistatic agent, making fibers fluffy and attractive while providing antimicrobial and anti-mildew protection for fabric storage. Medical and public disinfection: Suitable for sterilization and immersion disinfection in hygiene and medical fields, wound infection washing, medical instrument disinfection, and sanitary disinfection of swimming pools and public places. Other fields: Spray disinfection of grain warehouses and livestock/poultry housing, and preservation of pastes, gelatin, and photographic film.

• Dodecyl Trimethyl Ammonium Chloride

  The cationic surfactant eMAI™ 1231 (dodecyl trimethyl ammonium chloride) is a colorless to pale yellow liquid, soluble in water, ethanol, and isopropanol aqueous solutions. With good chemical stability, it is resistant to heat, light, pressure, and strong acids and alkalis, and provides penetrating, emulsifying, antistatic, and biocidal properties. It has good compatibility with cationic and nonionic surfactants, delivering excellent sterilization, disinfection, softening, antistatic, and corrosion-inhibiting effects. The product also offers good water solubility, emulsifying, and dispersing properties, and is widely used in: Industrial water treatment: As a high-efficiency biocide/algaecide for microbial control in circulating cooling water and oilfield water injection systems. Household chemicals and textiles: As a main component of hair conditioners and fabric softeners, providing a soft, smooth hand feel and antistatic performance. Mining and petroleum: As a covering agent in organic bentonite modification, and as a phase-transfer catalyst and flotation agent; also usable in emulsified muds. Medical and hygiene: For skin disinfection, medical instrument disinfection, and cleaning/disinfection of environmental surfaces; also usable in blood sample analysis. Ink additives: Enhances the function of the ink's main components (colorants and binders), improving ink characteristics.

• Hexadecyl Trimethyl Ammonium Chloride

  The cationic surfactant eMAI™ 1631 (hexadecyl trimethyl ammonium chloride) is a colorless to pale yellow paste or solid, soluble in water and readily soluble in ethanol and isopropanol aqueous solutions. With good chemical stability, it is resistant to heat, light, pressure, and strong acids and alkalis, and provides penetrating, emulsifying, antistatic, biodegradable, and biocidal properties, delivering excellent sterilization, disinfection, softening, antistatic, and corrosion-inhibiting effects. It is widely used in: Industrial water treatment: As a high-efficiency biocide/algaecide for microbial control in circulating cooling water and oilfield water injection systems. Household chemicals and textiles: As a main component of hair conditioners and fabric softeners, providing a soft, smooth hand feel and antistatic performance. Mining and petroleum: As a modifying agent in organic bentonite modification, and as a phase-transfer catalyst and flotation agent; also usable in emulsified muds. Medical and hygiene: For skin disinfection, medical instrument disinfection, and cleaning/disinfection of environmental surfaces; also usable in blood sample analysis. Ink additives: Enhances the function of the ink's main components (colorants and binders), improving ink characteristics.

• Octadecyl Dimethyl Benzyl Ammonium Chloride

  eMAI™ 1827 (octadecyl dimethyl benzyl ammonium chloride) is a cationic quaternary ammonium surfactant produced by quaternization of octadecyl dimethyl tertiary amine with benzyl chloride. Compared with 1227, 1827 has a broader range of applications. Applications: Suitable for formulating softening conditioners, premium hair creams, hair conditioning softeners, hair dyes, and skin-care and cleansing products. Used as a leveling agent for cationic dyes in acrylic fiber dyeing, giving dyed fabrics a soft hand feel. Also used as a softening finishing agent for acetate fibers and as a biocidal disinfectant. Used as a leveling agent for cationic dyes in acrylic fiber dyeing, giving dyed fabrics a soft texture. Stable in nature; resistant to light, heat, and acids (but not alkalis); tolerant of hard water and inorganic salts; non-volatile.

• Octadecyl Trimethyl Ammonium Chloride

  The cationic surfactant eMAI™ 1831 (octadecyl trimethyl ammonium chloride) is a colorless to pale yellow paste or solid, soluble in water and readily soluble in ethanol and isopropanol aqueous solutions. With good chemical stability, it is resistant to heat, light, pressure, and strong acids and alkalis, and provides penetrating, emulsifying, antistatic, biodegradable, and biocidal properties, delivering excellent sterilization, disinfection, softening, antistatic, and corrosion-inhibiting effects. It is widely used in: Industrial water treatment: As a high-efficiency biocide/algaecide for microbial control in circulating cooling water and oilfield water injection systems. Household chemicals and textiles: As a main component of hair conditioners and fabric softeners, providing a soft, smooth hand feel and antistatic performance. Mining and petroleum: As a modifying agent in organic bentonite modification, and as a phase-transfer catalyst and flotation agent; also usable in emulsified muds. Medical and hygiene: For skin disinfection, medical instrument disinfection, and cleaning/disinfection of environmental surfaces; also usable in blood sample analysis. Ink additives: Enhances the function of the ink's main components (colorants and binders), improving ink characteristics.

• Lauramidopropyl Betaine

  Lauramidopropyl betaine eMAI™ LAB is a zwitterionic compound produced by amidation of lauric acid with N,N-dimethyl-1,3-propanediamine, followed by quaternization with sodium chloroacetate. Product features: Readily soluble in water with good solubility; Stable performance with strong resistance to temperature, high-salinity water, and calcium/magnesium; Good compatibility with anionic, cationic, and nonionic surfactants; High surface and interfacial activity; Provides a certain thickening effect with anionics or in high-salinity water; Excellent foaming and foam-stabilizing properties, reducing the irritation of anionic surfactants.

• Oleamidopropyl Betaine

  Oleamidopropyl betaine eMAI™ OAB is a zwitterionic compound produced by amidation of oleic acid with N,N-dimethyl-1,3-propanediamine, followed by quaternization with sodium chloroacetate, and finally purified and refined by vacuum distillation. Product features: Readily soluble in water with good solubility; Stable performance with strong resistance to temperature, high-salinity water, and calcium/magnesium; Good compatibility with anionic, cationic, and nonionic surfactants; High surface and interfacial activity; Provides a certain thickening effect with anionics or in high-salinity water; Excellent foaming and foam-stabilizing properties, reducing the irritation of anionic surfactants.

• Alkyl Dimethyl Betaine BS Series

  The eMAI™ BS Series alkyl dimethyl betaines are mild amphoteric surfactants synthesized by quaternization of alkyl tertiary amines with sodium chloroacetate; their molecular structure contains an alkyl hydrophobic chain and a carboxybetaine hydrophilic group. This amphiphilic structure gives them excellent water solubility, foaming, and wetting capabilities. The products offer outstanding chemical stability, remaining stable over a wide pH range, with strong hard-water tolerance, extremely low skin and eye irritation, and good biodegradability—widely used in personal care products and mild cleansers.

• Fatty Amidopropyl Hydroxysultaine AHSB Series

  The eMAI™ AHSB Series fatty amidopropyl hydroxysultaines are zwitterionic compounds produced by amidation of fatty acids with N,N-dimethyl-1,3-propanediamine, followed by quaternization with hydroxysulfonation. Product attributes: Excellent solubility and compatibility: Dissolves rapidly in water and acts synergistically with other surfactants; Foaming and thickening: Produces rich, stable foam and increases product viscosity; Low irritation and biocidal action: Low skin and eye irritation with a certain biocidal effect, suitable for mild personal care products; High salinity tolerance: Good tolerance to calcium and magnesium ions; Antistatic: Reduces static buildup and can be used as an antistatic agent; Biodegradability: Biodegradable to a degree and environmentally friendly.

• Erucamidopropyl Betaine

  Erucamidopropyl betaine eMAI™ EAB is a zwitterionic compound produced by amidation of erucic acid with N,N-dimethyl-1,3-propanediamine, followed by quaternization with sodium chloroacetate, and finally purified and refined by vacuum distillation. Product features: Readily soluble in alcohol-water mixed solutions; Maintains stable performance over a wide pH range; Good compatibility with anionic, cationic, and nonionic surfactants; Effectively reduces the surface tension of liquids, improving cleaning power; Provides a certain thickening effect with anionics or in high-salinity water.

• Nonionic Surfactant AEO Series

  The eMAI™ AEO Series nonionic surfactants are formed by ring-opening polymerization of fatty alcohols with ethylene oxide (EO). One end of the molecular structure is a hydrophilic polyoxyethylene ether group, and the other is a hydrophobic long-chain alkyl group—an amphiphilic structure that confers outstanding interfacial activity. The series offers excellent chemical stability, remaining stable in hot dilute alkalis, acids, and oxidants. In addition, it does not ionize in aqueous solution, giving it strong hard-water tolerance, little tendency to precipitate with calcium and magnesium ions, low skin irritation, and good biodegradability.

• Isodecanol Ethoxylates IS10 Series

  The eMAI™ IS10 Series isodecanol ethoxylates are nonionic surfactants formed by ring-opening polymerization of isodecanol with ethylene oxide (EO). The polyoxyethylene segments provide excellent hydrophilicity, while the isomeric alkane structure delivers good wetting, emulsifying, dispersing, and penetrating action. As nonionic surfactants, they do not ionize in aqueous solution, offering extremely high chemical stability against acids, alkalis, and strong electrolytes, and are largely unaffected by hard water.

• Isotridecanol Ethoxylates IS13 Series

  The eMAI™ IS13 Series isotridecanol ethoxylates are nonionic surfactants formed by ring-opening polymerization of isotridecanol with ethylene oxide (EO). The polyoxyethylene segments provide excellent hydrophilicity, while the isomeric alkane structure delivers good wetting, emulsifying, dispersing, and penetrating action. As nonionic surfactants, they do not ionize in aqueous solution, offering extremely high chemical stability against acids, alkalis, and strong electrolytes, and are largely unaffected by hard water.

• Penetrating Agent JFC Series

  The eMAI™ JFC Series penetrating agents are nonionic surfactants produced by ring-opening polymerization of C7–C10 fatty alcohols (mostly isooctanol) with ethylene oxide (EO). They offer good penetrating and wetting performance, excellent chemical stability and tolerance, and good emulsifying and dispersing capabilities.

• Nonionic Surfactant OP Series

  The eMAI™ OP Series nonionic surfactants are formed by ring-opening polymerization of octylphenol with ethylene oxide (EO); adjusting the length of the polyoxyethylene ether segment imparts excellent performance. OP Series surfactants do not ionize in aqueous solution and offer outstanding resistance to acids, alkalis, hard water, and electrolytes. Highly stable to heat and shear, they maintain their emulsifying and dispersing performance under harsh conditions.

• Peregal O Series

  The eMAI™ O Series (Peregal) is a typical nonionic surfactant formed by ring-opening polymerization of fatty alcohols with ethylene oxide (EO). By adjusting the EO segment length, it delivers good wetting, emulsifying, dispersing, and detergency performance, and therefore has extremely wide application in industrial and household chemical fields.

• Nonionic Surfactant Span Series

  The eMAI™ Span Series is a group of polyol-type nonionic surfactants produced by dehydration of sorbitol to sorbitan, followed by esterification with different fatty acids. They feature strong lipophilicity, poor water solubility, excellent emulsifying performance, high chemical stability, and resistance to acids, alkalis, and high temperatures. Their specific properties depend mainly on the type of fatty acid bound and the degree of esterification; as the fatty acid carbon chain lengthens or saturation changes, the HLB value, melting point, and physical form vary accordingly.

• Nonionic Surfactant Tween Series

  The eMAI™ Tween Series nonionic surfactants are produced by ring-opening polymerization of sorbitan fatty acid esters (the Span Series) with ethylene oxide (EO). They offer strong hydrophilicity, excellent solubility, outstanding emulsifying and solubilizing capabilities, and chemical stability. The properties of Tween products depend mainly on the length of the attached fatty acid chain and the EO addition number: as the fatty acid carbon chain lengthens, the HLB value decreases slightly and hydrophobicity increases; as the EO chain lengthens, hydrophilicity increases.

• Bio-based Surfactant Products

  Green, environmentally friendly surfactants made from natural raw materials.