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热分析与气相色谱联用研究一水合草酸氢钾
引用本文:杜廷发,张世进.热分析与气相色谱联用研究一水合草酸氢钾[J].无机化学学报,1999,15(4):531-535.
作者姓名:杜廷发  张世进
作者单位:1. 国防科技大学,材料工程与应用化学系,长沙,410073
2. 中国人民解放军89810部队,马兰,841700
摘    要:用热分析与气相色谱联用技术(TA-GC)研究KHC2O4·H2O的热分解表明,在空气和氦气当中,开始时缓慢分解,放出结晶水。接着KHC2O4快速分解成K2C2O4,并释放出一些气体产物:O2(分解初期)、CO、CO2和H2O。讨论了KHC2O4的分解机理。

关 键 词:热分解  一水合草酸氢钾  逸出气体分析(EGA)  TA-GC联用

STUDIES ON THE THERMAL DECOMPOSITION OF POTASSIUM HYDROGEN OXALATE MONOHYDRATE BY COMBINED THERMAL ANALYSIS AND GAS CHROMATOGRAPHY
DU Ting-Fa and ZHANG Shi-Jin.STUDIES ON THE THERMAL DECOMPOSITION OF POTASSIUM HYDROGEN OXALATE MONOHYDRATE BY COMBINED THERMAL ANALYSIS AND GAS CHROMATOGRAPHY[J].Chinese Journal of Inorganic Chemistry,1999,15(4):531-535.
Authors:DU Ting-Fa and ZHANG Shi-Jin
Institution:Department of Material Engineering and Applied Chemistry, National University of Defence Technology, Changsha 410073 and PLA 89810 Troops, Xinjiang Malan 841700
Abstract:The thermal decomposition of KHC2O4·H2O was investigated by means of discontinuous simultaneous techniques of thermal analysis and gas chromatography (TA-GC). In air and helium the decomposition of KHC2O4·H2O was initially a slow dehydration process of the monohydrate, followed by a rapid decomposition of KHC2O4 to K2C2O4 with the production of some gaseous products, O2 (initial stage of decomposition), CO, CO2 and H2O. The decomposition mechanism of KHC2O4 was discussed.
Keywords:thermal decomposition  potassium hydrogen oxalate monohydrate    combined TA-GC  evolved gas analysis (EGA)
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