| Vaporisation of Cesium from Cesium Metaborate, Cesium
Silicate, Cesium Borosilicate and Mixtures of Cesium
Nitrate, Boric Oxide and Silica |
J. MUKERJI
Pages : 57-67
DOI : 10.1080/0371750X.1971.10840761 |
| Abstract |
| Volatilisation loss of cesium from glass melts and from glass batches containing cesium
nitrate has been reported. Transpiration vapour pressure measurement of stoichiometric
CsB02 in the temperature range 898-136 r K and pseudo-vapour pressure of cesium over
cesium silicate and cesium borosilicate in the temperature range 1323-1423° K have been
determined. Cesium metaborate has a vapour pressure of the order of J0-2 atmosphere
at J36lK whereas cesium vapour pressures over cesium tetrasilicate and cesium
borosilicate are of the order of I0-5 atmosphere. Cesium vapour pressure over cesium
borosilicate is about 3 times higher at I 150°C than the corresponding pressure of cesium
silicate. Heat and entropy of evaporation for the reaction CsB02 (I)~ CsBO 2 ( v) have
been found to be 41.38 ± 4 K calfmole and 23.5 e.u. respectively. |
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