Liquid-liquid and solid-liquid equilibria of the poly(ethylene glycol) plus sodium sulfate plus water system at 298.15 K

Taboada, ME; Rocha, OA; Graber, TA; Andrews, BA

Abstract

Liquid-liquid and solid-liquid equilibrium data are presented for the PEG 4000 + Na2SO4 + water system at 298.15 K. Six equilibrium regions were found. The binodal curve was fitted means of a three-parameter equation (relative mean deviation 3.95%), and the tie lines compositions were fitted to both the Othmer-Tobias and Bancroft equations. Densities and refractive indices were determined for the solutions in equilibrium. Samples of the solid phase analyzed by X-ray diffraction showed it to consist of anhydrous Na2SO4.

Más información

Título según WOS: Liquid-liquid and solid-liquid equilibria of the poly(ethylene glycol) plus sodium sulfate plus water system at 298.15 K
Título según SCOPUS: Liquid-liquid and solid-liquid equilibria of the poly(ethylene glycol) + sodium sulfate + water system at 298.15 K
Título de la Revista: JOURNAL OF CHEMICAL AND ENGINEERING DATA
Volumen: 46
Número: 2
Editorial: AMER CHEMICAL SOC
Fecha de publicación: 2001
Página de inicio: 308
Página final: 311
Idioma: English
URL: http://pubs.acs.org/doi/abs/10.1021/je000242e
DOI:

10.1021/je000242e

Notas: ISI, SCOPUS