MEASURED ENTHALPY AND DERIVED THERMODYNAMIC PROPERTIES OF SOLID AND LIQUID LITHIUM TETRAFLUOROBERYLLATE, LI2BEF4, FROM 273 TO 900 K

Abstract

The enthalpy of 98. 6% purity Li//2BeF4, was measured relative to 273 K at 11 temperatures from 323 to 873 K. Impurity and premelting connections were applied. The enthalpy and heat capacity, and the entropy and Gibbs free-energy function relative to the standard thermodynamic temperature 298. 15 K were computed from empirical functions of temperature derived from the data, and are tabulated from 273 to 900 K.