| 乙二胺盐酸盐的低温热容和热化学性质 |
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| 引用本文： | 刘玉普,邸友莹,何东华,孔玉霞,杨伟伟,淡文彦. 乙二胺盐酸盐的低温热容和热化学性质[J]. 高等学校化学学报, 2010, 31(6): 1227 |
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| 作者姓名： | 刘玉普 邸友莹 何东华 孔玉霞 杨伟伟 淡文彦 |
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| 作者单位： | 聊城大学化学化工学院, 聊城 252059 |
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| 摘 要： | 合成了乙二胺盐酸盐, 并表征了其晶体结构. 测定了其在78~370 K温度区间的低温热容, 通过最小二乘法拟合得到热容对温度的多项式方程. 设计了合理的热化学循环, 测定了所设计反应的反应物和产物的溶解焓, 得到反应焓. 利用Hess定律计算出乙二胺盐酸盐的标准摩尔生成焓为-(540.74±1.33) kJ/mol. 利用紫外-可见光谱和折光指数的结果检验了所设计热化学循环的可靠性.
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| 关 键 词： | 乙二胺盐酸盐 晶体结构 低温热容 标准摩尔溶解焓 标准摩尔生成焓, |
| 收稿时间： | 2009-08-21 |
Low-temperature Heat Capacities and Thermochemistry Properties of Ethylene Diamine Dihydrochloride |
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| LIU Yu-Pu,DI You-Ying,HE Dong-Hua,KONG Yu-Xia,YANG Wei-Wei,DAN Wen-Yan. Low-temperature Heat Capacities and Thermochemistry Properties of Ethylene Diamine Dihydrochloride[J]. Chemical Research In Chinese Universities, 2010, 31(6): 1227 |
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| Authors: | LIU Yu-Pu DI You-Ying HE Dong-Hua KONG Yu-Xia YANG Wei-Wei DAN Wen-Yan |
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| Affiliation: | College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, China |
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| Abstract: | Ethylene diamine dihydrochloride was synthesized by solvothermal synthesis.X-ray crystallography was applied to characterize its structure.Low-temperature heat capacities of the title compound were measured by a precision automated adiabatic calorimeter over the temperature range from 78 K to 370 K.A polynomial equation of heat capacities as a function of the temperature was fitted by least square method.A reasonable thermochemical cycle was designed on the basis of a designed thermochemical reaction(1.0 mo... |
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| Keywords: | Ethylene diamine dihydrochloride Crystal structure Low-temperature heat capacity Standard molar enthalpy of dissolution Standard molar enthalpy of formation |
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