Fatty acid tauride

While raising the pH gave some improvements in lather, more improvement was needed. Various co-surfactants, including alkyl sulfates, alkyl aryl sulfonates, and fatty acid taurides were effective in improving the speed of lather when present at levels of around 5%. Cost considerations led to choosing an alkyl aryl sulfonate, particularly sodium dodecyl benzene sulfonate, as it was already widely used in the formulation of laundry detergents. 

Taurides (or taurates) are acylamino alkane sulfonates which have chemical structures close to isethionates. They are prepared by the reaction of a fatty acid chloride with N-methyl taurine (CH3-NH-CH2-CH2-S03-Na). Oleic acid chloride or coconut fatty add chloride are suitable reactants. At variance with the above fatty acid isethionates, taurides are less prone to hydrolysis. Taurides have good foaming and emulsifying properties and are insensitive to water hardness. 

Chem. Descrip. Cr nut fatty acid methyl tauride, Na salt Ionic Nature Anionic Uses Surfactant Fhoperties Paste = 30% act. 

Hostapon TPHC [Clariant/Functional Chems.j Chem. Descrip. Fatty acid methyl tauride sodium salt Ionic Nature Anionic Uses Dispersant for crop formulations Regulatory EINECS listed Properties Powd. 60-65% act. 

CAS 12765-39-8 61791-42-2 EINECS/ELINCS 235-802-1 263-174-9 Synonyms Ethanesulfonic acid, 2-(methylamino)-, N-coco acyl derivs., sodium salts Sodium coco methyl tauride Sodium cocoyl methyl taurate Sodium N-cocoyl-N-methyl taurate Sodium N-methyl-N-cocoyl taurate Definition Sodium salt of the coconut fatty acid amide of N-methyltaurine Ionic Nature Anionic... 

These are named as derivatives of taurine (2-aminoethanesulfonic acid) and are also called taurides. The typical synthetic route involves reaction of sodium bisulfite and ethylene oxide to form sodium isethionate, reaction of the isethionate with methylamine to form sodium iV-methyltaurate, then subsequent reaction with the acyl chloride of a fatty acid to give the iV-acyl-Al-methyltaurate. Taurates have good tolerance to water hardness and find specialty applications in textiles and in detergent bars and shampoos. Taurates are sometimes classified as amphoteric surfactants. 

AE, NPE, acid ethoxylates, amine ethoxylates, esters, ethoxylated esters, alkanolamides, ethoxylated alkanolamides, EO/PO copolymers LAS, alkyl sulfates, ether sulfates, isethionates, sulfosuccinate half ester, carboxylates, sarcosides, taurides, fatty acid alkanolamides, amine oxides, quaternary amines, betaines, imidazoline derivatives detection in personal care formulations... 

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