Experimental thermochemical study of 2,5-and 2,6-dichloro-4-nitroanilines

• Type: Article in International Scientific Journal
• Date: 2009

Authors

Manuel A V R Ribeiro da Silva (Author) FCUP; Maria D M C R Ribeiro da Silva (Author) FCUP; Ana I M C L Lobo Ferreira (Author) FCUP; Ana Filipa L O M Santos (Author) FCUP; Tiago L P Galvo (Author) Other

Journal

Title: Journal of Chemical Thermodynamics

Vol. 41

Pages: 1074-1080

ISSN: 0021-9614

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 20 Citations

Scopus - 20 Citations

Scientific classification

FOS: Engineering and technology > Mechanical engineering

Other information

Authenticus ID: P-003-FE8

DOI: 10.1016/j.jct.2009.04.012

Abstract (EN): The standard (p degrees = 0.1 MPa) molar enthalpies of formation of 2,5- and 2,6-dichloro-4-nitroanilines, in the gaseous phase, at T = 298.15 K, were derived from the combination of the values of the standard molar enthalpies of formation in the crystalline phase, at T = 298.15 K, and the standard molar enthalpies of sublimation, of each compound, at the same temperature. The standard molar enthalpies of formation, in the crystalline phase, at T = 298.15 K, were derived from the standard massic energies of combustion of the two isomers, in oxygen, at T = 298.15 K, measured by rotating-bomb combustion calorimetry. The standard molar enthalpies of sublimation were calculated, by application of the Clausius-Clapeyron equation, to the vapour pressures at several temperatures measured by Knudsen effusion technique. [GRAPHICS] The values of the standard (p = 0.1 MPa) molar enthalpies of formation of 2,5- and 2,6-dichloro-4-nitroanilines, in the gaseous phase, at T = 298.15 K. were compared with those estimated by the Cox scheme.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7