A MICRO-COMBUSTION CALORIMETER SUITABLE FOR SAMPLES OF MASS 10 MG TO 50 MG - APPLICATION TO SOLID COMPOUNDS OF C, H, AND O, AND OF C, H, O, AND N

被引：37

作者：

DIOGO, HP

DAPIEDADE, MEM

机构：

[1] Centro de Química Estrutural, Instituto Superior Técnico

来源：

JOURNAL OF CHEMICAL THERMODYNAMICS | 1995年 / 27卷 / 02期

关键词：

D O I：

10.1006/jcht.1995.0016

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A micro-combustion calorimeter suitable for samples of mass about 10 mg to 50 mg is described. Calibration with benzoic acid led to the energy equivalent epsilon degrees = (1809.82 +/- 0.28) J.K-1 The calorimeter was tested by determining the standard molar enthalpies of formation at the temperature 298.15 K of salicylic acid: Delta(f)H degrees(m){o-C6H4(OH)(CO2H), cr} = -(587.8 +/- 1.5) kJ.mol(-1) and of urea: Delta(f)H degrees(m)(H2NCONH2, cr) = -(333.4 +/- 0.6) kJ.mol(-1).

引用

页码：197 / 206

页数：10

共 35 条

[1]

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[2]

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[3]

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