The Heat of Mixing for Binary Mixtures of Triethylamine with Alcohols

Abstract

Calorimetric measurements of the heat of mixing have been made at 25 °C and 40 °C for binary mixtures of triethylamine with methanol, and at 25 °C and 45 °C for binary mixtures of triethylamine with ethanol, n-propanol, and n-butanol. It is found that the heat of mixing for these systems becomes slightly less negative as the temperature is increased. However, apart from methanol, the size of the alcohol molecule has little effect on the heat of mixing. The results obtained are compared with those calculated from vapour pressure data in an earlier paper.