ChemInform Abstract: A Knudsen Cell‐Mass Spectrometer Study of the Vaporization of Cesium Telluride and Cesium Tellurite.

Abstract

ChemInform Abstract Using a Knudson-cell method with a quadrupole MS as a detector partial as well as absolute vapor pressures of Cs2Te and Cs2TeO3 are determined over the range 600 to 1000 rc C. Standard enthalpies are measured and the data are used to calculate Gibbs energies of vaporization. The data thus obtained generally shows agreement with predicted values, and discrepancies between theoretical and experimental results in the case of Cs2Te might be due to oxygen contamination. The work is of importance for the evaluation of safety hazards in nuclear reactors, due to possible release of volatile (Cs) and semi-volatile fission products (such as Te).