Brominated Surfactants as Emulsifiers and Weighting Agents, Part II: Emulsifying Properties

Brominated mono- and tri- sorbitan esters of fatty acids and their corresponding polyoxyethylene sorbitan esters have been recently prepared and shown to have surface properties. These brominated surfactants serve as effective emulsifiers for o/w emulsions. The HLB of the brominated compounds has been determined and shown to be similar to the non-brominated ones. The use of a blend of brominated sorbitan esters together with brominated polyoxyethylene sorbitan esters have synergistic unpredicted effect on the required HLB of the system. The effect of the brominated surfactants, in various combinations, on the ease of formation and stability of paraffinic oil in water emulsion, prepared with increasing emulsifiers concentrations or increasing Copyright.