Effect of calcium nitrate on the vapor-liquid equilibria of ethanol + water and 2-propanol + water

Journal Article · Fri Jul 01 00:00:00 EDT 1994 · Journal of Chemical and Engineering Data; (United States)

DOI:https://doi.org/10.1021/je00015a053· OSTI ID:7044642

Polka, H M; Gmehling, J ^[1]

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1. Univ. of Oldenburg (Germany). Chair of Industrial Chemistry

The effect of calcium nitrate on the vapor-liquid equilibria of ethanol + water and 2-propanol + water was studied using a Swietoslawski ebulliometer. The measurements were performed for two constant salt molalities (1 and 2 mol[center dot]kg[sup [minus]1]) under isobaric conditions at 50.66 kPa. Strong salting-out of the alcohol was observed in all cases, leading to a complete elimination of the azeotropic point at relatively low salt concentrations. The results were correlated using an extension of the NRTL equation for mixed solvent electrolyte systems proposed by Mock, Evans, and Chen.

• OSTI ID: 7044642
• Journal Information: Journal of Chemical and Engineering Data; (United States), Vol. 39:3; ISSN 0021-9568
• Country of Publication: United States
• Language: English

Related Subjects

10 SYNTHETIC FUELS
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ETHANOL
THERMODYNAMIC PROPERTIES
PROPANOLS
CALCIUM NITRATES
CATALYTIC EFFECTS
EQUATIONS OF STATE
EQUILIBRIUM
EXPERIMENTAL DATA
LIQUIDS
MEASURING METHODS
SALINITY
SOLVENTS
VAPORS
ALCOHOLS
ALKALINE EARTH METAL COMPOUNDS
CALCIUM COMPOUNDS
DATA
EQUATIONS
FLUIDS
GASES
HYDROXY COMPOUNDS
INFORMATION
NITRATES
NITROGEN COMPOUNDS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
100300* - Synthetic Fuels- Properties & Composition- (1990-)
400201 - Chemical & Physicochemical Properties