应用化学 ›› 1993, Vol. 0 ›› Issue (5): 97-98.

• 研究简报 • 上一篇    下一篇

用DSC直接法测量POM晶体的比热容

朱国安1, 郑吉民2   

  1. 1. 核工业理化工程研究院 300180 天津;
    2. 南开大学化学系 天津
  • 收稿日期:1992-11-26 修回日期:1993-05-19 出版日期:1993-10-10 发布日期:1993-10-10

DETERMINATION OF SPECIFIC HEAT CAPACITY OF 3-METHYL-4-NITROPYRIDINE OXIDE BY DSC

Zhu Guoan1, Zheng Jimin2   

  1. 1. Research Institute of Physical Chemical Engineering of Nuclear Industry, 300180 Tianjin;
    2. Department of Chemistry, Nankai University, Tianjin
  • Received:1992-11-26 Revised:1993-05-19 Published:1993-10-10 Online:1993-10-10

摘要: 比热容是物质的特性参数之一。测定比热容的经典方法通常是采用各种类型的精密量热计,该方法测量精度高,但操作繁琐,费时费力。采用差示扫描量热法(DSC)测定比热容精度可达到0.3%,具有速度快、试样用量少等优点。 本文用DSC法测量人工晶体3-甲基-4-硝基氧化吡啶(POM)在320~380K之间的比热容。

关键词: 比热容, 差示扫描量热法, POM晶体

Abstract: The specific heat capacity of 3-methyl-4-nitropyridine oxide has been determined directly by DSC method as 1.2251~1.4046J/g • deg in the temperature range of 320 to 380K.

Key words: specific heat capacity, determination, differential scanning calorimetry, methylnitropyridine oxide