Analysis by phase-titration of three-component systems containing two mutually immiscible or partially miscible components

A method, based on phase titration, for the analysis of ternary mixtures containing two mutually immiscible or partially miscible components is described. The method involves titrating a measured amount of the sample at constant temperature with one of the immiscible components to a turbidimetric end-point. The refractive index of the resultant solution (clarified by addition of the mutually miscible component) is determined and from the results the composition of the ternary mixture is estimated. The method is illustrated for the system consisting of benzene, cyclohexane and nitromethane.