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Enthalpies of combustion, vapour pressures, and enthalpies of sublimation of 5-amino-6-nitroquinoline and 4-aminoquinaldine

✍ Scribed by Manuel A.V. Ribeiro da Silva; Ana Paula S.M.C. Carvalho; Manuel J.S. Monte; Edward Giera

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
165 KB
Volume
30
Category
Article
ISSN
0021-9614

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✦ Synopsis

The standard pЊ s 0.1 MPa massic energies of combustion ⌬ uЊ at T s 298.15 K were c measured by static bomb combustion calorimetry for 5-amino-6-nitroquinoline and 4aminoquinaldine, from which the standard molar enthalpies of formation of both compounds, in the crystalline state, were derived. The standard molar enthalpies of sublimation ⌬ g H T of cr m the same compounds were derived from the Knudsen effusion measurements of the vapour pressures as a function of the temperature. T y1 g y 1 . . Ž . Ž . Ž . y⌬ uЊ cr r J g ⌬ H r kJ mol c c r m Ž . 5-amino-6-nitroquinoline 5-A6-NQ 24336.4 " 5.8 136.4 " 0.8 Ž . 4-aminoquinaldine 4-AQND 34100.6 " 5.7 115.3 " 0.8

The derived standard molar enthalpies of formation in the gaseous state are shown to fit a group addictivity scheme.

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