| 热重法研究一水合草酸锶脱水过程的机理与动力学 |
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| 引用本文： | 成庆堂,席国喜,李靖华.热重法研究一水合草酸锶脱水过程的机理与动力学[J].河南师范大学学报(自然科学版),1992(1). |
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| 作者姓名： | 成庆堂 席国喜 李靖华 |
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| 作者单位： | 河南师范大学化学系，河南师范大学化学系，河南师范大学化学系 |
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| 摘 要： | 本文利用等温热重法和非等温热重法,研究了一水合草酸锶脱水过程的机理与动力学.实验测定和理论分析表明:SrC_2O_4·H_2O的脱水过程受A_3机理支配,即属于一种随机成核和晶核随后生长的过程,其活化能E=94.47kJ·mol~(-1),频率因子A=2.59×10~(10)min~(-1).
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| 关 键 词： | 草酸锶 热重分析 动力学 补偿效应 |
INVESTIGATION ON KINETICS AND MECHANISM OF DEHYDRATION OF STRONTIUM OXALATE MONOHYDRATE BY THERMOGRAVIMETRY |
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| Cheng Qingtang Xi Guoxi Li Jinghua.INVESTIGATION ON KINETICS AND MECHANISM OF DEHYDRATION OF STRONTIUM OXALATE MONOHYDRATE BY THERMOGRAVIMETRY[J].Journal of Henan Normal University(Natural Science),1992(1). |
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| Authors: | Cheng Qingtang Xi Guoxi Li Jinghua |
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| Institution: | Department of Chemistry |
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| Abstract: | The kinetics parameters and mechanism of dehydration of SrC_2O_4 ·H_2O were studied by means of thermogravimctry both at isothermal and non-isothermal runs. Experiment measure and theoretical analysis show,that the thermal dehydration of SrC_2O_4 ·H_2O is regulated by an A_3 mechanism,i.e. the random nuclcation and its subsequent growth mechanism. The activation energy E=94.47kJ·mol~(-1), frequency factor A= 2.59×10~(10)min~(-1). |
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| Keywords: | strontium of oxalate thermogravimetry kinetic compensation effects |
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