Soap-based detergent formulations: VIII. N-Alkylsulfosuccinamates as lime soap dispersants

TLDR: A series of disodium N-alkylsulfosuccinamates were prepared by the reaction of methyl Nalkylmaleamates with sodium bisulfite in aqueous ethanol as mentioned in this paper.

Abstract: A series of sodium methyl N-alkylsulfosuccinamates was prepared by the reaction of methyl N-alkylmaleamates with sodium bisulfite in aqueous ethanol. The surface-active properties and detergency of these derivatives were compared with those of a series of disodium N-alkylsulfosuccinamates prepared by the reaction of sodium sulfite with N-alkylmaleamic acid in water. The ester derivatives generally showed good lime soap dispersing requirement and washing ability in combination with soap, where-as the disodium salts were somewhat deficient in these properties and exhibited good washing ability only at 0.2% concentration with the surfactant as the sole component.