Determination of the energies of combustion and enthalpies of formation of nitrobenzenesulfonamides by rotating-bomb combustion calorimetry

被引：8

作者：

Adriana Camarillo, E. ^{[1
]}

Flores, Henoc ^{[1
]}

机构：

[1] Univ Autonoma Puebla, Fac Ciencias Quim Benemerita, Puebla 72570, Mexico

来源：

JOURNAL OF CHEMICAL THERMODYNAMICS | 2010年 / 42卷 / 03期

关键词：

Rotating-bomb calorimeter; Combustion energies; Formation enthalpies; 2-Nitrobenzenesulfonamide; 3-Nitrobenzenesulfonamide; 4-Nitrobenzenesulfonamide; STANDARD MOLAR ENTHALPIES; HEAT; AMINES; PHASE; ACID;

D O I：

10.1016/j.jct.2009.10.003

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The energies of combustion for 2-nitrobenzenesulfonamide (cr), 3-nitrobenzenesulfonamide (cr), and 4-nitrobenzenesulfonamide (cr) were determined using a recently described rotating-bomb combustion calorimeter. The condensed phase molar energies of combustion obtained were -(3479.2 1.0) kJ . mol(-1) for 2-nitrobenzenesulfonamide (cr), -(3454.2 +/- 1.1) kJ . mol(-1) for 3-nitrobenzenesulfonamide (cr), and -(3450.1 +/- 1.9) kJ . mol(-1) for 4-nitrobenzenesulfonamide (cr). From these combustion energy values, the standard molar enthalpies of formation in the condensed phase were obtained as: -(341.3 +/- 1.3) kJ . mol(-1), -(366.3 +/- 1.3) kJ . mol(-1), and -(370.4 +/- 2.1) kJ . mol(-1), respectively. Polyethene bags were used as an auxiliary material in the combustion experiments. The heat capacities and purities of the compounds were determined using a differential scanning calorimeter. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：425 / 428

页数：4

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