Thermal analysis of lithium peroxide prepared by various methods

被引：12

作者：

Ferapontov, Yu. A. ^{[1
]}

Kokoreva, N. V. ^{[1
]}

Kozlova, N. P. ^{[1
]}

Ul'yanova, M. A. ^{[1
]}

机构：

[1] Roskhimzashchita Corp, Tambov 392680, Russia

来源：

RUSSIAN JOURNAL OF GENERAL CHEMISTRY | 2009年 / 79卷 / 05期

基金：

俄罗斯基础研究基金会;

关键词：

Differential Thermal Analysis; General Chemistry; Endothermic Effect; Differential Thermal Analysis Curve; Exothermic Effect;

D O I：

10.1134/S1070363209050041

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Behavior of lithium peroxide samples at heating in air was studied by the methods of thermogravimetric analysis (TGA) and differential thermal analysis (DTA). In the temperature range from 32 to 82A degrees C all the studied samples we found to react with water vapor forming lithium peroxide monohydrate as confirmed by the methods of chemical analysis and of qualitative X-ray phase analysis. It was found experimentally that in the temperature range from 340 to 348A degrees C lithium peroxide began to decompose into lithium oxide and oxygen, the starting temperature depended on the method of preparation of lithium peroxide. For all the studied samples polymorphism in the temperature range from 25 to 340A degrees C was not detected.

引用

页码：891 / 894

页数：4