Influence de la température sur les constantes B.E.T. de dissolution de l'eau dans un mélange fondu [AgNO3 + TlNO3]

Abstract

The temperature dependence of the B.E.T. constants for water dissolved in the melt (0.515 AgNO3 + 0.485 TlNO3) has been studied in the range 85–110 °C at water mole fractions between 0 and 0.5. The B.E.T. constants are: r: the mole ratio of adsorption sites to salt; ΔE: the difference between the molar energy of adsorption of water on an available site in the melt and the molar energy of liquefaction of water.It was found in this work that (1) r increases linearly with temperature and (2) the product rΔE is perceptibly independent of temperature.