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Pandect of sulfate surfactants (1): Definition

Time:2014-12-22 21:30:30; Reading: 32

Pandect of sulfate surfactants (1): Definition

Sulfate surfactants are widely used; among them, alkyl sulfates are the oldest surfactants after soaps.

The surfactants have -OSO3- functional group.

General formula of sulfate surfactants:

Among:

R:

-- CnH2n+1: alkyl sulfates;

-- CnH2n-1: alkenyl sulfates

-- R'-CnH2n-2 and CnH2n-2 (cyclo-structure), R' is H or other structures: cycloalkyl sulfates;

-- CnH2n+1 (OCH2CH2) m: saturated fatty alcohol polyoxyethylene ether sulfate;

-- CnH2n-1 (OCH2CH2) m: unsaturated fatty alcohol polyoxyethylene ether sulfate (include one double bond);

-- : saturated fatty alcohol polyoxypropylene ether sulfates;

-- : unsaturated fatty alcohol polyoxypropylene ether sulfates (include one double bond);

-- : polyoxypropylene polyoxypropylene ether sulfates; R' is CkH2k+1: alkyl polyoxypropylene polyoxypropylene ether sulfates;

-- : polyoxypropylene polyoxypropylene ether sulfates; R' is CkH2k+1: alkyl polyoxypropylene polyoxypropylene ether sulfates;

-- : R' is H or other structures: phenolic sulfates;

-- : phenol polyoxyethylene ether sulfates; R' is CnH2n+1: alkyl phenol polyoxyethylene ether sulfates;

-- : saturated fatty acid monoglyceride sulfates; the second hydroxyl group is sulfated: saturated fatty acid monoglyceride disulfates;

-- : unsaturated fatty acid alkyl ester sulfates (double bond reaction types);

-- : unsaturated fatty acid alkyl ester sulfates (hydroxy reaction types) (double bond may move back and forth);

-- : R' is H or other structures: saturated fatty acid amide alkyl sulfates;

-- : R' is H or other structures: unsaturated fatty acid amide alkyl sulfates;

-- castor oil-based: sulfated castor oil (mixing reaction type, based on hydroxy reaction type);

-- animal fats: sulfated animal fats;

-- sugar group: sugar sulfates.

Surfactant

gamma-Oryzanol

Diflucortolone valerate

Betamethasone valerate

Megestrol acetate

Betamethasone acetate

Standard

Test methods of surfactants, catalog, Chinese national standards

Surfactants, catalog, Chinese national standards

Test methods of materials, catalog, Chinese national standards

Basic standards of materials, catalog, Chinese national standards

Test methods of textile auxiliaries, catalog, Chinese national standards