Standard enthalpies of formation of sodium-magnesium hydride and hydridofluorides NaMgH3, NaMgH2F and NaMgF2H

被引：30

作者：

Bouamrane, A ^{[1
]}

de Brauer, C ^{[1
]}

Soulié, JP ^{[1
]}

Létoffé, JM ^{[1
]}

Bastide, JP ^{[1
]}

机构：

[1] Inst Natl Sci Appl Lyon, CNRS, UPRES A 5079, Lab Thermodynam Appl, F-69621 Villeurbanne, France

来源：

THERMOCHIMICA ACTA | 1999年 / 326卷 / 1-2期

关键词：

hydrides; hydridofluorides; perovskite; standard enthalpy of formation; calorimetry;

D O I：

10.1016/S0040-6031(98)00610-8

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The standard enthalpies of formation of NaMgH3 and NaMgH2F were determined by calorimetry using their reaction with hydrochloric acid aqueous solution (0.5 M HCl): Delta(f)H(0) (NaMgH3, cr, 298 K) = -(231 +/- 4) kJ mol(-1) Delta(f)H(0)(NaMgH2F, cr, 298 K) = -(720 +/- 8) kJ mol(-1) The standard enthalpy of formation of NaMgF2H was estimated on the basis of the experimental measurements and on the value of sodium-magnesium fluoride (NaMgF3) noted in the literature: Delta(f)H(0)(NaMgF2H, cr, 298 K) = -(1221 +/- 7) kJ mol(-1).

引用

页码：37 / 41

页数：5

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