| 三甲醇丙烷—季戊四醇固体溶液的热容和相变焓 |
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| 引用本文： | 张志英,杨孟林.三甲醇丙烷—季戊四醇固体溶液的热容和相变焓[J].应用化学,1990,7(1):88-90. |
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| 作者姓名： | 张志英 杨孟林 |
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| 作者单位： | 西北大学热化学研究所，西北大学热化学研究所 西安 710069，西安 710069 |
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| 摘 要： | 前曾报道季戊四醇在461.60K有一个固-固相变,其相交含为41.37kJmol~(-1)。但是,作为低温储能材料,该物质的相变温度偏高。从有关固-固相变储能材料的热力学研究中,我们发现三甲醇丙烷-季戊四醇固体溶液具有较低的固-固相变温度。本文测定了三甲醇丙烷-季戊四醇(摩尔比60:40)固体溶液的相变热参数和热容。
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| 关 键 词： | 三甲醇丙烷 季戊四醇 热容 相变焓 |
| 收稿时间： | 1989-05-12 |
HEAT CAPACITY AND PHASE TRANSITION ENTHALPY OF TRIMETHYLOLPROPANE-PENTAERYTHRITOL SOLID SOLUTION |
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| Zhang Zhiying,Yang Menglin Thermochemistry Institute,Northwestern University,Xi'an.HEAT CAPACITY AND PHASE TRANSITION ENTHALPY OF TRIMETHYLOLPROPANE-PENTAERYTHRITOL SOLID SOLUTION[J].Chinese Journal of Applied Chemistry,1990,7(1):88-90. |
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| Authors: | Zhang Zhiying Yang Menglin Thermochemistry Institute Northwestern University Xi'an |
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| Institution: | Zhang Zhiying,Yang Menglin Thermochemistry Institute,Northwestern University,Xi'an 710069 |
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| Abstract: | The heat capacity of the solid solution of trimethylolpropane and pentaerythritol (60:40 mol%) was measured by means of an automated adiabatic calorimeter. A solid-solidtransition and a melting transition of the solid solution were found at 330.51 K and433.0 K with the transition enthalpies of 9.72 and 5.76 kJmol~(-1), respectively. |
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| Keywords: | trimethylolpropane pentaerythritol heat capacity phase transition enthalpy |
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