Thorium disulphide gas ThS2 g

Gronvold et al. [1984GRO/DRO] have given tentative estimates for the thermodynamic properties, based on comparison with Th02(g) and trends in sulphide dissociation energies C . (ThSz, g, 298.15 K) = (53.1 + 3.0) J-K- -mol , (ThSz, g, 298.15 K) = (304.0 + 10.0) J-K -mor and Af//° (ThS2, g, 298.15 K) = (75 + 60) kJ-moT, with the uncertainties estimated by this review. No data are selected in the present review. 

This indicates that the enthalpy of formation of Th2S5(cr) is ca. 8.3 kJ-mol more negative than that of ThS2(cr) in this temperature range. In the absence of any 

Other thermodynamic data for ThS2(cr) and ThS2 s(cr), no further processing is possible and this equation is given for information only. 

These data are consistent with the finding by [1999KOH/BEC] that Th2S2.5(cr) decomposes to the solid disulphide in a high vacuum at 873 K. 

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