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SODIUM ALKYL SULFATES

Synonyms:  Sodium alkyl sulfate, SAS

Formula:  CNH 2 N + 1OSO 3 -Na +; N = 8 ÷ 18

In general, alkyl sulfates are a class of organic compounds united by the presence of a common functional group, usually having the structure RO-SO3−. In other words, sodium alkyl sulfates are sodium salts of sulfoesters of higher organic alcohols with different alkyl chain lengths. Primary alkyl sulfates were and remain one of the predominant types among synthetic anionic surfactants. One of the most famous representatives is sodium lauryl sulfate: CH 3 (CH 2 ) 11 OSO 3 Na.

SODIUM ALKYL SULFATES
DESCRIPTION
Synonyms:  Sodium alkyl sulfate, SAS

Formula:  CNH 2 N + 1OSO 3 -Na +; N = 8 ÷ 18

In general, alkyl sulfates are a class of organic compounds united by the presence of a common functional group, usually having the structure RO-SO3−. In other words, sodium alkyl sulfates are sodium salts of sulfoesters of higher organic alcohols with different alkyl chain lengths. Primary alkyl sulfates were and remain one of the predominant types among synthetic anionic surfactants. One of the most famous representatives is sodium lauryl sulfate: CH 3 (CH 2 ) 11 OSO 3 Na.

Production method

The main method for producing primary alkyl sulfates is sulfation of primary alcohols, followed by neutralization of the reaction mass with solutions of sodium, ammonia or magnesium hydroxides.

Properties

Sodium alkyl sulfates are diphilic organic compounds that, dissociating in water, form an anion with a long hydrocarbon radical - a carrier of surface activity; the cation is not surfactant in this case.

Sodium alkyl sulfates are produced in the form of mono compounds with a given length of the hydrocarbon radical - octyl sulfates, decyl sulfates; and in the form of compositions containing radicals of various lengths. Sodium alkyl sulfates are a low-hazard substance. IV hazard class according to GOST 12.1.007–76.

Application:

for the manufacture of household and technical detergents, washing powders, liquid soap, cosmetics and hygiene products, foaming agents for foam fire extinguishing systems;
as auxiliary substances in the oil industry;
as wetting agents in the textile and leather industries;
as flotation reagents;
in emulsion polymerization processes;
in the production of gypsum plasterboards and foam concrete blocks.

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