Abstract
The effect of alcoholic additives on surface tension of aqueous solutions of lithium bromide is investigated. As an additive, 1-hexanol, 1-heptanol, 1-octanol and 1-nonanol are selected. The surface tension of lithium bromide solution with alcoholic additives is predicted from hydration numbers of lithium bromide in aqueous solutions and surface tension of aqueous alcoholic solutions. The hydration number are determined from ultrasonic velocity measurements. The surface tension of aqueous alcoholic solutions is measured by the Wilhelmy method. The derivative of predicted surface tension of lithium bromide solution with respect to the additive concentration is almost the same as that of literature data.
