热分析与气相色谱联用研究一水合草酸氢钾(英文) |
STUDIES ON THE THERMAL DECOMPOSITION OF POTASSIUM HYDROGEN OXALATE MONOHYDRATE BY COMBINED THERMAL ANALYSIS AND GAS CHROMATOGRAPHY |
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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 |
基金项目: |
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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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(英文)[J].无机化学学报,1999,15(4):531-535. |
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