Long chain alkanesulfonates and 1‐hydroxy‐2‐alkanesulfonates: Structure and property relations

Abstract

Even chain sodium alkanesulfonates from the Strecker reaction, odd chain sodium alkanesulfonates from the alkaline decarboxylation of ॅ‐sulfo acids, and sodium 1‐hydroxy‐2‐alkanesulfonates from the reduction of esters of ॅ‐sulfo acids were compared with respect to Krafft point, critical micelle concentration, detergency and foam height. Sodium alkanesulfonates and crude fusion products from the ॅ‐sulfo acids (mixtures of alkanesulfonates of one less carbon atom with a lesser amount of a soap of two less carbon atoms) are more soluble and have better detergent and foaming properties. Sodium 1‐hydroxy‐2‐alkanesulfonates resemble monosodium salts of ॅ‐sulfo acids.Alkanesulfonic acids and 1‐hydroxy‐2‐alkane‐sulfonic acids obtained from the sodium salts by ion exchange have lower Krafft points and are more readily soluble. The critical micelle concentrations of 1‐hydroxy‐2‐alkanesulfonic acids and ॅ‐sulfo acids are nearly the same and about equal to those of alkanesulfonic acids of one less carbon atom.

Synthesis and Characterization of Anionic Long Chain Fatty Alkyl Salicylate Based on Juagafa Seed Fat and Grape Seed Oil

“…Three readings were made on each sample to determine any change with time and to obtain an average value (9) . Kraft point was measured as the temperature at which 1 % dispersion solution becomes clear on gradual heating (14) .…”

Amphoteric Surface Active Agents with Heterocyclic Ring Based on Industrial Wastes

“…Kraft point was measured as the temperature at which 1 % dispersion solution becomes clear on gradual heating (15) .…”

Synthesis and evaluation of some surface active agents from long chain fatty amine

“…The reproducibility of this temperature was checked by cooling the solutions until they become clear again (Wiel, et al, 1963).…”