Thermodynamics of strontium tungstate evaporation

被引：2
|
作者：
Kazenas E.K. [1 ]
Tsvetkov Yu.V. [1 ]
Astakhova G.K. [1 ]
Samoilova I.O. [1 ]
Volchenkova V.A. [1 ]
机构：
[1] Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Moscow, 119991
来源：
Russ. Metall. (Metally) | 2007年 / 2卷 / 105-108期
关键词：
82.60.-s;
D O I：
10.1134/S0036029507020036
中图分类号：
学科分类号：
摘要：
High-temperature mass-spectrometric analysis is used to study the evaporation of SrWO4 (J) at 1805-1890 K. SrWO4 (g) molecules are found to be present in the vapor. The pressure of the SrWO 4 (g) molecule vapor is determined to be logP = -25052/T + 7.13. The heat of sublimation (ΔH° s, 0 (SrWO4(s)) = 620 ± 20 kJ/mol) is determined using the third law of thermodynamics. The atomization energy of the SrWO4 (g) molecules is calculated to be ΔH° at, 0 (SrWO4 (g)) = 3030 ± 40 kJ/mol. © 2007 Pleiades Publishing, Ltd.
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页码：105 / 108
页数：3
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