Investigation of the Ternary Phase Diagram of Water-Propan-2-ol-Sodium Chloride: A Laboratory Experiment

A new laboratory experiment investigating the ternary phase equilibrium of water-propan-2-ol-sodium chloride with one-, two-, and three-phase regions has been developed. Observations of the type and number of phases of a series of mixtures of the three components were made, and the results are then used in a systematic way to more finely choose the next set of compositions to use. No specialized equipment is required.