高等学校化学学报 ›› 1989, Vol. 10 ›› Issue (12): 1211.

• 研究论文 • 上一篇    下一篇

精密溶解量热装置的建立与标定

邹立壮1, 张忠海2, 徐桂端3, 屈松生3   

  1. 1. 山东聊城师范学院;
    2. 湖北孝感师范专科学校;
    3. 武汉大学化学系
  • 收稿日期:1988-03-01 出版日期:1989-12-24 发布日期:1989-12-24
  • 通讯作者: 徐桂端

The Construction and Calibration of a Precision Solution Calorimeter

Zou Lizhuang1, Zhang Zhonghai2, Xu Guiduan3, Qu Songsheng3   

  1. 1. Shandong Liaocheng Teacher's College, Liaocheng;
    2. Hubei Xiaogan Teacher's Speciality School, Xiaogan;
    3. Department of Chemistry, Wuhan University, Wuhan
  • Received:1988-03-01 Online:1989-12-24 Published:1989-12-24

摘要: 本文报道了自行建立的用热敏电阻作为测温元件的精密溶解量热装置,并用量热标准物质光谱纯氯化钾和美国国家标准局提供的三羟甲基氨基甲烷(TRIS)对仪器进行了标定,在25℃所得实验结果:KCI溶解焓为17518±15J·mol-1;TRIS与0.1mol/LHCI的反应焓为-29729±31J·mol-1,与文献值吻合,检验了该装置的可靠性.

关键词: 四苯硼酸盐, 热化学, 溶解热, 热量计, 标定

Abstract: Aprecision solution calorimeter was constructed in the laboratory.Athermsistor thermometer was used for temperature measurement.The calorimeter was calibrated with calorimetric standardreference materials——spectroscopically pure potassium chloride and tris (hydroxymethyl)aminomethane from N.B.S.-724 a in USA.The results obtained at 25℃ was found to be 17518± 15 J.mol-1 for the enthalpy of solution of potassium chloride in water and -29729 ±31 J.mol-1 for the enthalpy of reaction of TRISin 0.1008 mol/L HCl.The values are well in agreement with the published results.The reliability of this apparatus was confirmed

Key words: Tetraphenylborates, Thermochemistry, Heat of solution, Calorimeter, Calibration

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