Calorimetric investigation of the solid compounds of the Au-Pb system

被引：2
|
作者：
Bouhajib, A
Nadiri, A
Yacoubi, A
Bros, H
Castanet, R [1 ]
机构：
[1] Fac Sci Meknes, Dept Chim Sci Mater, Meknes, Morocco
[2] CNRS, Ctr Thermodynam & Microcalorimetrie, F-13003 Marseille, France
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 1999年 / 282卷 / 1-2期
关键词：
calorimetry; enthalpy of formation; gold; lead;
D O I：
10.1016/S0925-8388(98)00709-9
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The three intermediate compounds of the Au-Pb system were synthesised by melting the pure components in suitable proportions and annealing at a temperature just below their melting point. Their structural stares were verified by X-ray studies. The enthalpy of formation of the compounds was measured by dissolution calorimetry (drop method) at 650K in liquid lead using a high temperature Tian-Calvet calorimeter. The measurements lead to: h(f)(Au0.667Pb0.333, cr, 298 K) = - 3.1 kJ mol(-1) h(f)(Au0.333Pb0.667, cr, 298 K) = - 3.2 kJ mol(-1) h(f)(Au0.25Pb0.75, cr, 298 K) = - 1.6 kJ mol(-1) (C) 1999 Elsevier Science S.A. All rights reserved.
引用
收藏
页码：149 / 152
页数：4
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