Portal de Periódicos da CAPES

Sodium salts of alkyl esters of a ‐sulfo fatty acids. Wetting, lime soap dispersion, and related properties

1962; Wiley; Volume: 39; Issue: 2 Linguagem: Inglês

10.1007/bf02631689

1558-9331

A. J. Stirton, R. G. Bistline, J. K. Weil, W. C. Ault, E. W. Maurer,

Polydiacetylene-based materials and applications

Abstract A series of esters of the general formula RCH(SO 3 Na)‐CO 2 R′ of 14–19 carbon atoms prepared by the α‐sulfonation of propionic, butyric, pelargonic, lauric, myristic, palmitie, and stearic acids and esterification with normal primary alcohols were compared for critical micelle concentration, surface and interfacial tension, Ca ++ stability, wetting properties, foam height, detergency, and lime soap dispersing properties. Comparison of position isomers showed that as the hydrophilic portion moved from the center toward either end, cmc and wetting efficiency decreased, surface and interfacial tension increased, and Ca ++ stability and lime soap dispersing properties improved. A coconut oil fatty acid forerun sulfonated with SO 3 vapor and esterified with 2‐ethylhexanol gave a product with useful wetting properties in soft and hard water.