A thermal and thermochemical study of natural hemimorphite

被引：11

作者：

Bisengalieva, M. R. ^{[1
]}

Mel'chakova, L. V. ^{[2
]}

Ogorodova, L. P. ^{[2
]}

Vigasina, M. F. ^{[2
]}

机构：

[1] Inst Comprehens Exploitat Mineral Resources, Karaganda, Kazakhstan

[2] Moscow MV Lomonosov State Univ, Fac Geol, Moscow, Russia

来源：

RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A | 2010年 / 84卷 / 09期

关键词：

SPECTROSCOPY; H2O;

D O I：

10.1134/S0036024410090050

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：

A thermal and thermochemical study of natural aqueous hydroxyl-containing diorthosilicate, hemimorphite Zn(4)[Si(2)O(7)](OH)(2) center dot H(2)O, was performed. The step character of its thermal decomposition was studied using FTIR spectroscopy. Melt solution calorimetry was used to determine the enthalpies of formation from oxides Delta(f) H (O) (OX) (298.15 K) = -69.3 +/- 9.9 kJ/mol and elements {ie1481-2} (298.15 K) = -3864.3 +/- 10.2 kJ/mol.

引用

页码：1481 / 1484

页数：4

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