Abstract
The four samples of sodium n-alkoxybenzene monosulfonates (alkyl : n-octyl, n-dodecyl, n-hexadecyl and n-octadecyl) were prepared, refined and identified. The physico-chemical studies on the properties of the aqueous solution of the above compounds (density, viscosity, surface tension, electric conductivity, wettability, emusificability and solubilizability) were carried out. From these results, it was concluded that the above compounds were inferior to ordinary surfactants in spite of the structural similarity with p-n-alkylbenzenesulfonates, well known commercial surfactants. This may be due to hydrophilic ether group located near the center of the molecule making the molecule more hydrophilic.
