| RD—Ⅲ型热导式自动量热计的研制 |
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| 引用本文： | 曾宪诚,陈昌林.RD—Ⅲ型热导式自动量热计的研制[J].四川大学学报(自然科学版),1991,28(2):201-206. |
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| 作者姓名： | 曾宪诚 陈昌林 |
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| 作者单位： | 四川大学化学系
(曾宪诚,陈昌林,何明中,张元勤),四川大学化学系(邓郁) |
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| 基金项目： | 高等学校博士学科点专项科研基金资助项目 |
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| 摘 要： | 研制了适于在室温到100℃范围内工作的RD—Ⅲ型热导式自动量热计,并实现了数据的自动处理.通过电能标定和化学标定,证明该量热计设计合理,工作正常,其性能符合Tian’s方程的要求.相对精度小于1％,对2J以上的热效应能准确地进行测量,把它用于苯甲酸乙酯皂化反应的热动力学研究,测得25.0℃时反应速度常数k_2=1.33×10~(-3)dm~3.mol~(-1).s~(-1).
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| 关 键 词： | 热导式 量热计 微机 电能标定 |
RD-III CONDUCTION TYPE AUTOMATION CALORIMETER |
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| Zeng Xiancheng Chen Changling He Mingzhong Zhang Yuanqin Deng Yu.RD-III CONDUCTION TYPE AUTOMATION CALORIMETER[J].Journal of Sichuan University (Natural Science Edition),1991,28(2):201-206. |
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| Authors: | Zeng Xiancheng Chen Changling He Mingzhong Zhang Yuanqin Deng Yu |
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| Institution: | Department of Chemistry |
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| Abstract: | On the basis of our previous work, a new conduction type calorimeter automatized with a microcomputer has been developed. It is suitable to using in a temperature range from room-temperature to 100 C.The heat constant, the cooling constant and the heat capacity constant of this calorimeter have been calibrated with electric energy and the reaction between Tris and 0.1 mol.dm-3 HC1. The saponification of ethyl benzoate in "50%" aqueous alcohol solvent has been studied at 25.0 C with it. Experimental results are in agreement with the data in literatures.From these results, this calorimeter is belived to be in conformity with Tian's equation. Its reproduction is good. Its sensitivity is high enough for the measurement of the heat of two joule with a relative standard deviation of <1% |
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| Keywords: | conduction calorimeter thermokinetics electric energy calibration chemical calibration |
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