Evaporation from a Three‐Phase Emulsion

The evaporation path was determined for the emulsion system water, linalool and 5% Laureth 4, (L4), from the phase diagram of the components. The initial part of the evaporation took place in a two‐phase region of the emulsion and the path, expressed as fractions of the compounds, was non‐linear reflecting the changed vapour pressure of the linalool. The latter part of the evaporation, on the other hand, occurred through a three‐phase region and the path now formed a straight line. The recently introduced algebraic approach to extracting information from phase diagrams enabled presenting quantitative changes in composition, phase fractions and total content of the emulsion, as well as the vapour pressure versus different variables; including time.