Isobaric vapor-liquid equilibrium for ethanol + water + sodium nitrate

Journal Article · Sun Sep 01 00:00:00 EDT 1996 · Journal of Chemical and Engineering Data

DOI:https://doi.org/10.1021/je960115b· OSTI ID:378025

Pena, M P; Vercher, E; Martinez-Andreu, A ^[1]

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1. Univ. de Valencia (Spain). Dept. de Ingenieria Quimica

The salt effect on the vapor-liquid equilibrium of mixed solvents provides a potential technique of extractive distillation, in which a dissolved salt, rather than a liquid additive, is used as the separating agent. This salt distillation process has been used in the purification of close-boiling, azeotropic, and other systems which are difficult to separate. The isobaric vapor-liquid equilibrium for ethanol (1) + water (2) + sodium nitrate (3) at various concentrations of salt and with ethanol mole fractions from 0 to 0.774 has been measured at 100.0 kPa. The results were correlated by assuming that the salt was in ionic form and it was associated only with the water.

• OSTI ID: 378025
• Journal Information: Journal of Chemical and Engineering Data, Journal Name: Journal of Chemical and Engineering Data Journal Issue: 5 Vol. 41; ISSN JCEAAX; ISSN 0021-9568
• Country of Publication: United States
• Language: English

Related Subjects

10 SYNTHETIC FUELS
ADDITIVES
AQUEOUS SOLUTIONS
AZEOTROPE
DISTILLATION
ETHANOL
SODIUM NITRATES
THERMODYNAMIC PROPERTIES