Some detersive properties of model straight chain sodium alkylbenzenesulfonates

Abstract

Model long chain sodium ortho and para alkylbenzenesulfonates having primary, secondary and tertiary carbon atoms attached to the phenyl group have been evaluated for foam, wetting and detergency. The data indicate that the surface active properties of these three classes of compounds which are primarily linear in structure are dependent upon sulfonate position, phenyl position and chain length. Each of these factors contributes to performance. Ortho sulfonates are better wetting agents than para sulfonates but the para compounds generally foam better and appear to have superior detergency properties than their respective ortho isomers. Ortho sulfouate in a detergent composition may have a greater influence on surface active properties than had been heretofore recognized.

Surfactants Affect Calcium Uptake from Postharvest Treatment of `Golden Delicious' Apples

“…The surfactant in category 3 (Triton X-100) with HLB 13.5, having an alkylbenzene moiety as the hydrophobic moiety, was even more effective in increasing Ca uptake. The two surfactants with chain branching in the hydrophobic moiety (Tergitol 15-S-9 and Triton X-100) caused the greatest amount of Ca uptake among the nonionic surfactants in accord with findings that nonlinear hydrophobic substituents are better wetting agents with greater absorbing efficiency (Gray, 1965).…”