E. A. Camarillo, H. Flores
Mar 1, 2010
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Influential Citations
8
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Journal
The Journal of Chemical Thermodynamics
Abstract
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.