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

• Tipo: Artigo em Revista Científica Internacional
• Data: 2002

Autores

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

Revista

Título: Journal of Chemical Thermodynamics

Vol. 34

Páginas: 119-127

ISSN: 0021-9614

Editora: Elsevier

Indexação

ISI Web of Knowledge - 18 Citações

Scopus - 18 Citações

Outras Informações

ID Authenticus: 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 9