Solubilization of water by hydrotropic salts.
The effect of some electrolytes, nonelectrolytes, surfactants, and hydrotropic salts on the solubility of water in 1-butanol and 1-hexanol was investigated. While sodium chloride and sodium acetate decrease the solubility of water in 1-butanol, urea has no significant effect. The ionic surfactants, sodium lauryl sulfate and cetrimide, cause an initial decrease in the solubility of water in 1-butanol followed by an increase at high surfactant concentrations. The nonionic surfactant, polysorbate 20, does not show the initial decrease in water solubility. On the other hand, the hydrotropic salts, sodium benzoate, sodium salicylate, and sodium gentisate, are shown to be the best water solubilizers in 1-butanol. Sodium salicylate showed the maximum solubilizing power. The effect of sodium benzoate, sodium salicylate, and sodium lauryl sulfate on the solubility of water in 1-hexanol was also investigated. Similar results were obtained.
D055598:Chemical Phenomena; D002627:Chemistry, Physical; D004573:Electrolytes; D012492:Salts; D012995:Solubility; D013501:Surface-Active Agents; D014508:Urea; D014867:Water / Q000032:analysis*
D004573:Electrolytes; D012492:Salts; D013501:Surface-Active Agents; D014867:Water; D014508:Urea