| 甲氰菊酯的热容及热力学性质的研究 |
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| 引用本文： | 薛斌,谭志诚,陆世维,孟霜鹤,原晓华.甲氰菊酯的热容及热力学性质的研究[J].化学学报,1999,57(8):881-886. |
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| 作者姓名： | 薛斌 谭志诚 陆世维 孟霜鹤 原晓华 |
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| 作者单位： | 1. 中国科学院大连化学物理研究所热化学实验室,大连,116023
2. 中国科学院大连化学物理研究所国家催化工程技术研究中心,大连,116023 |
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| 基金项目： | 国家自然科学基金(29573133,29773048)资助项目 |
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| 摘 要： | 采用精密自动绝热量热测量了自已合成并提纯到0.9916(摩尔分数)的甲氰菊酯在80~400K温区的热容.在此温区发现一固液熔化相变.其熔化温度、摩尔熔化焓、摩尔熔化熵分别为:(322.476^+~-0.012)K,(18.57^+~-0.29)kj.mol^-^1,(57.59^+~-1.01)J.K^-^1.mol^-^1.报道了该物质每隔5K的热力学函数值,用热重法研究了该化合物的热分解,对试样的化学纯度进行了量热研究。
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| 关 键 词： | 甲氰菊酯 比热 热力学性质 热分解 |
| 修稿时间： | 1998年9月17日 |
Heat capacities and thermodynamic properties of fenpropathrin |
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| XUE Bin,TAN Zhi-cheng,LU Shi-Wei,MENG Shuang-he,YUAN Xiao-hua.Heat capacities and thermodynamic properties of fenpropathrin[J].Acta Chimica Sinica,1999,57(8):881-886. |
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| Authors: | XUE Bin TAN Zhi-cheng LU Shi-Wei MENG Shuang-he YUAN Xiao-hua |
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| Abstract: | The heat capacity of fenpropathrin of high purity (99.16%) was measured by using an automatic calorimeter in the temperature range between 80 and 400K. A solid-liquid phase transition was found for the compound in this temperature range.The temperature,the molar enthalpy and entropy of the fusion transition were determined to be (322.476^+~-0.012)K,(18.57^+~-0.29)kJ.mol^-^1 and (57.59^+~1.01)J.K^- ^1mol^-^1, respectvely.The thermodynamic functions of the compound were derived and reported at an interval of 5K.The thermal decomposition of the compound was investigated by thermogravimetric analytic technique. The temperature of the decomposition,the activation energy,the order and the frequency factor for the decomposition reaction were determined.The calorimetric determination of purityfor the compound was carried out with the same calorimeter. |
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| Keywords: | fenpropathrin adiabatic calorimetry thermodynamic function thermal decomposition purity determination |
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