Pandect of phosphate surfactants (1): Definition
The surfactants having phosphoric acid functional group.
General formula:
Phosphate diester salt:
-- R, R1: hydrophobic group, R2: H;
Phosphate monoester salt:
-- R: hydrophobic group, R1, R2: H.
Among:
hydrophobic group:
-- CnH2n+1: alkyl phosphate;
-- CnH2n-1: alkenyl phosphate;
-- CnH2n+1 (OCH2CH2) m: saturated fatty alcohol polyoxyethylene ether phosphate;
-- CnH2n-1 (OCH2CH2) m: unsaturated fatty alcohol polyoxyethylene ether phosphate;
-- : R': H or other group, phenol phosphate;
-- : phenol polyoxyethylene ether phosphate; R': CnH2n+1, alkylphenol polyoxyethylene ether phosphate;
-- : R' is H: saturated fatty acid amide polyoxyethylene ether phosphate;
-- Castor oil group: castor oil phosphate.