Determination of the Enthalpies of Formation of Some Platinum Antimonides and Their Phase Diagrams under Standard Conditions

被引：3

作者：

Osadchii, E. G. ^{[1
]}

Stolyarova, T. A. ^{[1
]}

Voronin, M. V. ^{[1
]}

Brichkina, E. A. ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Expt Mineral, Ul Akad Osipyana 4, Chernogolovka 142432, Moscow Oblast, Russia

来源：

GEOCHEMISTRY INTERNATIONAL | 2017年 / 55卷 / 02期

基金：

俄罗斯基础研究基金会;

关键词：

platinum antimonides; calorimetry; stumpflite; geversite; standard enthalpy; phase diagram; THERMODYNAMIC PROPERTIES; ELEMENTS; EQUILIBRIA; HEAT; PD;

D O I：

10.1134/S0016702917010074

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Using the method of direct synthesis calorimetry, we determined the standard enthalpy of formation of PtSb (stumpflite), Delta (f) HA degrees(298.15) (PtSb, cr) = 105.16 +/- 0.84 kJ/mol and PdSb2 (geversite), Delta (f) HA degrees(298.15) (PtSb2,cr) = 160.92 +/- 0.84 kJ/mol. Isothermal (298.15 K, p = 1 bar) phase diagrams were computed for the Pt-Sb-S and Pt-Sb-O ternary systems in the coordinates composition of the Pt-Sb binary system versus fugacity of a gaseous volatile component (O-2, S-2).

引用

页码：225 / 229

页数：5

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