Anionic surfactants

The anionic surfactant can undergo dissociation when being dissolved in water with the part of surface activity exhibiting hydrophobic anion effects. Typical anionic surfactants include soaps, alkylbenzene sulfonates, alkyl sulfonates, alkyl sulfonates, alkyl sulfates, salts of fluorinated fatty acids, silicones, fatty alcohol sulfates, polyoxyethylene fatty alcohol ether sulfates, α-olefin sulfonate, polyoxyethylene fatty alcohol phosphates ether, alkyl alcohol amide, alkyl sulfonic acid acetamide, alkyl succinate sulfonate salts, amino alcohol alkylbenzene sulfonates, naphthenates, alkylphenol sulfonate and polyoxyethylene monolaurate. Anionic surfactants are generally insoluble at low temperatures. If the concentration continued to increase, they will reach a threshold limit, then precipitating out active agent of hydration. Upon increased water temperature at a certain temperature, due to the dissolving of the micelles, leaving the solubility being rapid increased with this temperature point called as catastrophe point. This feature is hold by ionic surfactants.

There are limited numbers of hydrophilic groups in the anionic type surfactant, but there are many types of hydrophobic groups. The raw materials of important hydrophilic group include carboxylic acid, sulfonic acid ester, sulfonic acid, phosphoric acid esters; the raw materials of hydrophobic group include animal and vegetable greases and their hydrolysis products, such as fatty acids, higher alcohols and the synthesized alcohols as petrochemical raw materials, alkanes benzene, α- olefins, etc., animal and vegetable oils include coconut oil, castor oil, cottonseed oil, palm oil, sperm whale oil, beef tallow and fish oil, etc. Furthermore, the rosin acid, naphthenic acid of the natural processed products have also been frequently used. Anionic surfactants also have excellent penetration, wetting, emulsification, dispersion, solubilization, foaming, decontamination, anti-static and smoothing properties.
Anionic surfactants have the largest yield in different categories of surfactants and can’t be mixed together with cationic surfactants for application due to precipitated in the aqueous solution to become ineffective. It can be used in combination with nonionic and amphoteric surfactants. It is commonly used as detergents, wetting agents, emulsifiers and dispersing agents. It is widely used in industry. In daily chemical industry, it is used in various kinds of detergent; in the field of cosmetics, it is used as the foaming agents of shampoos, bath, various kinds of creams, toothpaste, dispersing and emulsifying agents; in the field of food, it can be used as an emulsifier, defoamers, dispersants, preservatives, solubilizers, thickening agents and protein stabilizing agents and so on; it can also be used as feed emulsifier, dispersant, stabilizer; in the field of medicine, it can be used as emulsifiers, thickeners, preservatives, antioxidants and so on;

in the textile industry, it can be used as oiling agent, dyeing auxiliaries, bleaching agents, soft processing agent; in the field of pesticides, it can be used as spraying agents, emulsifying agents and dispersants; it can be used as asphalt emulsifier in highway and urban road construction such as tall oil sulfonate; in the field of civil engineering, it can be used as the water reducing agent of cement; in the development of oil field, it can be used as emulsifier, oil displacement agent, lubricant, sand consolidation agent, blocking agent, demulsifier, corrosion inhibitor, reducing agent, fluid loss agent and son on; it can be used as an emulsifier and fuel additive in the petroleum products; in the polymer industry, it can used as an emulsifier and antistatic agents during the emulsion and polymerization, antistatic agents; metal cleaning agent; mining flotation agent; water treatment agent; the brighteners, dispersants, pitting inhibitor in the plating solution and may be added to copper plating bath and nickel plating solution; it also has applications in other fields such as paint, ink, transportation, ship-breaking and other industries.

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Structure Chemical Name CAS MF
LITHIUM DODECYL SULFATE LITHIUM DODECYL SULFATE 2044-56-6 C12H25LiO4S
Sodium octyl sulfate Sodium octyl sulfate 142-31-4 C8H17NaO4S
Decyltrimethylammonium chloride Decyltrimethylammonium chloride 10108-87-9 C13H30ClN
CETYLDIMETHYLETHYLAMMONIUM BROMIDE CETYLDIMETHYLETHYLAMMONIUM BROMIDE 124-03-8 C20H44BrN
Potassium oleate Potassium oleate 143-18-0 C18H33KO2
Sodium pentanesulfonate Sodium pentanesulfonate 22767-49-3 C5H11NaO3S
Sodium dodecyl sulfate Sodium dodecyl sulfate 151-21-3 C12H25NaO4S
BUTYLNAPHTHALENESULFONIC ACID SODIUM SALT BUTYLNAPHTHALENESULFONIC ACID SODIUM SALT 25638-17-9 C14H15NaO2S
4-Morpholineethanesulfonic acid 4-Morpholineethanesulfonic acid 4432-31-9 C6H13NO4S
SODIUM DECYL SULFATE SODIUM DECYL SULFATE 142-87-0 C10H21NaO4S
LIGNOSULFONIC ACID, CALCIUM SALT LIGNOSULFONIC ACID, CALCIUM SALT 8061-52-7 C20H24CaO10S2
Sodium 1-butanesulfonate Sodium 1-butanesulfonate 2386-54-1 C4H9NaO3S
Sodium dodecylbenzenesulphonate Sodium dodecylbenzenesulphonate 25155-30-0 C18H29NaO3S
Sodium stearate Sodium stearate 822-16-2 C18H35NaO2
Magnesium stearate Magnesium stearate 557-04-0 C36H70MgO4
1-DODECANESULFONIC ACID SODIUM SALT 1-DODECANESULFONIC ACID SODIUM SALT 2386-53-0 C12H25NaO3S
Sodium allylsulfonate Sodium allylsulfonate 2495-39-8 C3H5NaO3S
3-(N,N-Dimethylpalmitylammonio)propanesulfonate 3-(N,N-Dimethylpalmitylammonio)propanesulfonate 2281-11-0 C21H45NO3S
Sulfonated castor oil Sulfonated castor oil 8002-33-3 C18H32Na2O6S
2,6-DIMORPHOLIN-4-YLPYRIMIDINE-4-CARBOXYLIC ACID 2,6-DIMORPHOLIN-4-YLPYRIMIDINE-4-CARBOXYLIC ACID C13H18N4O4
disodium methylenebisnaphthalenesulphonate disodium methylenebisnaphthalenesulphonate 26545-58-4 C21H14Na2O6S2
Cleaner for heat-transfer oil furnace Cleaner for heat-transfer oil furnace
LY 171883 LY 171883 88107-10-2 C16H22N4O3
Sodium alkylbenzene sulfonate Sodium alkylbenzene sulfonate 68411-30-3 RSO3Na(R=C10~C13)
Silk softener Silk softener C21H41NaO7S
Hydroxyaluminum distearate Hydroxyaluminum distearate 300-92-5 C36H71AlO5
SODIUM ETHYL 2-SULFOLAURATE SODIUM ETHYL 2-SULFOLAURATE 7381-01-3 C14H27NaO5S
SODIUM DIISOBUTYL SULFOSUCCINATE SODIUM DIISOBUTYL SULFOSUCCINATE 127-39-9 C12H21NaO7S
DODECYLBENZENESULFONIC ACID SODIUM SALT DODECYLBENZENESULFONIC ACID SODIUM SALT 69669-44-9 C18H29NaO3S
DICYCLOHEXYL SULFOSUCCINATE SODIUM SALT DICYCLOHEXYL SULFOSUCCINATE SODIUM SALT 23386-52-9 C16H25NaO7S
Disodium 4-dodecyl-2,4'-oxydibenzenesulfonate Disodium 4-dodecyl-2,4'-oxydibenzenesulfonate 7575-62-4 C24H32Na2O7S2
Organosilicon surfactant Organosilicon surfactant
SULFONATED ALIPHATIC POLYESTER SULFONATED ALIPHATIC POLYESTER 1639-66-3 C52H111Na3O7S
SODIUM-N-METHYL-N-OLEYL TAURATE SODIUM-N-METHYL-N-OLEYL TAURATE 137-20-2 C21H40NNaO4S
DI-N-HEXYL SODIUM SULFOSUCCINATE DI-N-HEXYL SODIUM SULFOSUCCINATE 3006-15-3 C16H29NaO7S
Dibasic Lead Stearate Dibasic Lead Stearate 56189-09-4 C36H70O6Pb2
Sodium n-octylsufonate Sodium n-octylsufonate C8H17NaO3S
sulfate AEC sulfate AEC
water-decreasing agent AF water-decreasing agent AF
dodecyl triethanolamine salfate dodecyl triethanolamine salfate C18H41NO7S
SODIUM DIAMYL SULFOSUCCINATE SODIUM DIAMYL SULFOSUCCINATE 922-80-5 C14H25NaO7S
Manganous stearate Manganous stearate C36H70MnO4
CALCIUM DODECYLBENZENE SULFONATE CALCIUM DODECYLBENZENE SULFONATE 26264-06-2 C36H58CaO6S2
disodium 4-[2-[(1-oxoundec-10-enyl)amino]ethyl] 2-sulphonatosuccinate disodium 4-[2-[(1-oxoundec-10-enyl)amino]ethyl] 2-sulphonatosuccinate 26650-05-5 C17H28NNa2O8S
Fluorocarbon surfactant Fluorocarbon surfactant
Lamepon A Lamepon A C17H33CONHR(CONHr1)nCOONa
Sodium poly[(naphthaleneformaldehyde)sulfonate] Sodium poly[(naphthaleneformaldehyde)sulfonate] 9084-06-4 (C11H7O4SNa)n
1-HEXADECANESULFONIC ACID SODIUM SALT 1-HEXADECANESULFONIC ACID SODIUM SALT 15015-81-3 C16H33NaO3S
SURFACTANT SURFACTANT C13H27SO3Na;C17H35SO3Na
Ammonium lauryl sulfate Ammonium lauryl sulfate 2235-54-3 C12H29NO4S
1-PENTANESULFONIC ACID SODIUM SALT MONOHYDRATE 1-PENTANESULFONIC ACID SODIUM SALT MONOHYDRATE 207605-40-1 C5H11O3S.Na
Sodium lignosulfonate Sodium lignosulfonate 8061-51-6 C20H24Na2O10S2
Dodecylbenzenesulphonic acid Dodecylbenzenesulphonic acid 27176-87-0 C18H30O3S
Sodium lauryl polyoxyethylene ether sulfate Sodium lauryl polyoxyethylene ether sulfate 9004-82-4 C12H25NaO3S
amidoaminosurfactans amidoaminosurfactans
Jiuma plate amino-acid surfactant Jiuma plate amino-acid surfactant
cleaner LS cleaner LS C25H40NO5SNa
sodium nonylphenol polyoxyethylene ether sulfate sodium nonylphenol polyoxyethylene ether sulfate C35H63NaO14S
S-(2-(N-((4-amino-2-methylpyrimidin-5-yl)methyl)formamido)-5-(phosphonooxy)pent-2-en-3-yl) 3-phenylprop-2-enethioate S-(2-(N-((4-amino-2-methylpyrimidin-5-yl)methyl)formamido)-5-(phosphonooxy)pent-2-en-3-yl) 3-phenylprop-2-enethioate 751-21-3 C21H25N4O6PS
fatty alcohol ammonium sulfate fatty alcohol ammonium sulfate C16H37NH4O4S
sodium oleyl sarcosinate sodium oleyl sarcosinate C21H40NNaO2
lauryl polyoxyethylene ether triethanol amine salt lauryl polyoxyethylene ether triethanol amine salt C24H53NO16S
dodecyl phenyl ammonium sulfate dodecyl phenyl ammonium sulfate C18H33NO4S
sodium pyrrolidone carbonate sodium pyrrolidone carbonate C5H7NNa2O4
N-acyl glutamate potassium salt N-acyl glutamate potassium salt
sodium polyalkyl phenyl polyoxyethylene ether sulfate sodium polyalkyl phenyl polyoxyethylene ether sulfate 76930-58-0
C^{12^} fatty alcohol polyoxyethylene ether ammonium sulfate C^{12^} fatty alcohol polyoxyethylene ether ammonium sulfate C18H41NO7S
stearyltoluene sodium sulfonate stearyltoluene sodium sulfonate C25H45NaO3S
sec-alkyl sodium sulfate sec-alkyl sodium sulfate RCH(CH3)SO4Na
Linear Alklybezene Sulfonates Linear Alklybezene Sulfonates C22H41NO6Na2S
nonylphenyl polyoxyethylene ether sulfate triethanolamine nonylphenyl polyoxyethylene ether sulfate triethanolamine
sopa sopa
dispersing agent CNF dispersing agent CNF [C36H26Na2O6S2]n
antistatic finish agent for synthetic fiber antistatic finish agent for synthetic fiber
frothing agent K14 frothing agent K14 C13~16H27~33O4SNa
glyceryl ethercarboxylic acid salt glyceryl ethercarboxylic acid salt
calcium stearyl lactate calcium stearyl lactate C42H82CaO6
monoethanolamine dodecyl sulfate monoethanolamine dodecyl sulfate C14H33NO5S
alkoxy ethanolamido sulfosuccinate sodium salt alkoxy ethanolamido sulfosuccinate sodium salt
ammonium dodecylbenzenesulphonate  ammonium dodecylbenzenesulphonate 1331-61-9 C18H33NO3S
dodecay diethanol amine sulfate dodecay diethanol amine sulfate C16H37NO6S
Levelling agent S Levelling agent S C17H13NaO3S
water-decreasing agent UNF-2 water-decreasing agent UNF-2
sodium dibenzyl amine enzene sulfonate sodium dibenzyl amine enzene sulfonate 8076-87-7 C20H18NaO3NS
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