Solubility of L-serine, L-threonine and L-isoleucine in aqueous aliphatic alcohol solutions

• Tipo: Artigo em Revista Científica Internacional
• Data: 2008

Autores

Luísa A. Ferreira (Autor) FEUP; Simão P. Pinho (Autor) FEUP; Eugénia A. Macedo (Autor) FEUP

Revista

Título: Fluid Phase Equilibria

Vol. 270

Páginas: 1-9

ISSN: 0378-3812

Editora: Elsevier

Indexação

ISI Web of Knowledge - 14 Citações

ISI Web of Science

Scopus - 20 Citações

COMPENDEX

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia química

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia química

Outras Informações

ID Authenticus: P-003-WY2

DOI: 10.1016/j.fluid.2008.05.008

Abstract (EN): The solubilities of L-serine, L-threonine and L-isoleucine in the aqueous systems of ethanol, 1-propanol and 2-propanol were measured at 298.15, 313.15 and 333.15 K by means of gravimetric and spectrophotometric ninhydrin based method measurements. In order to represent the solid-liquid equilibria in those systems the excess solubility approach was combined with the NRTL, the modified NRTL, the modified UNIQUAC equations and also with the model presented by Glude et al. [M.T. Gude, L.A.M. Wielen, K.Ch.A.M. Luyben, Fluid Phase Equilibr. 116 (1996) 110-117]. Their correlation performance showed global average relative deviations of 15.3, 13.7, 13.4 and 15.8%, respectively. while their application in the prediction Of L-threonine solubility in water/ethanol mixed solvent mixtures, at two different temperatures. showed average relative deviations of 18.8, 9.1, 28.9, and 38.4%. respectively.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 9