Thermodynamic properties of lithium n-alkanoates

Abstract

In the framework of a systematic investigation on thermophysics of alkali metal alkanoates, the thermodynamic properties of lithium n-alkanoates from the formate to the eicosanoate have been determined. Phase transitions in all these salts were brought out mainly with differential scanning calorimetry, and heat capacities of the carboxylates from the formate to the n-heptanoate were measured by means of adiabatic calorimetry. The results thus obtained are discussed in comparison with literature data determined with different techniques. A qualitative discussion of the possible origins of the transformations displayed by lithium alkanoates is given, and the heat capacity data are analysed in terms of CH2 contributions for members of the homologous series. © 1992, IUPAC