Standard molar enthalpies of formation of some trichloroanilines by rotating-bomb calorimetry

• Type: Article in International Scientific Journal
• Date: 2002

Authors

da Silva, MAVR (Author) FCUP; Amaral, LMPF (Author) Other; Ana I M C L Lobo Ferreira (Author) Other

Journal

Title: Journal of Chemical Thermodynamics

Vol. 34

Pages: 119-127

ISSN: 0021-9614

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 18 Citations

Scopus - 18 Citations

Other information

Authenticus ID: P-000-REG

DOI: 10.1006/jcht.2001.0905

Abstract (EN): The standard (pdegrees = 0.1 MPa) molar enthalpies of formation Delta(f)H(m)degrees, at the temperature 298.15 K, for crystalline 2,3,4-, 2,4,5-, 2,4,6- and 3,4,5-trichloroaniline were derived from the molar enthalpies of combustion Delta(c)H(m)degrees in oxygen using rotating bomb combustion calorimetry. The reaction products were CO2(g), NI(g), and HCl . 600H(2)O(l). The standard molar enthalpies of sublimation Delta(cr)(g)H(m)degrees at T = 298.15 K were measured by Calvet microcalorimetry. The results are as follows: [GRAPHICS] The derived standard molar enthalpies of formation of the gaseous compounds were compared with values estimated by assuming the enthalpy increment for substitution of chlorine in aniline to be the same as for substitution into benzene.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 9