Thermal decomposition of (NH4)2MoS4 and (NH4)2WS4heat of formation of (NH4)2MoS4
- 1 July 1972
- journal article
- research article
- Published by Wiley in Zeitschrift für anorganische und allgemeine Chemie
- Vol. 391 (2) , 107-112
- https://doi.org/10.1002/zaac.19723910203
Abstract
The reactions (NH4)2MeS4 = 2 NH3 + H2S + MeS3 (Me = Mo, W) were investigated by measuring the decomposition vapour pressures. Thermochemical data were obtained from these measurements: ΔH = 52 kcal/mole and ΔS = 105 cal/deg.mole for the decomposition of the tetrathiomolybdate. Similarly, ΔH = 69 kcal/mole and ΔS = 106 cal/deg.mole were obtained for the decomposition of the tetrathiotungstate. The normal heat of formation of (NH4)2MoS4 was found to be ΔH = −140 kcal/mole. The kinetics of thermal decomposition of the above reactions were also measured.Keywords
This publication has 2 references indexed in Scilit:
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