Experimental (vapour + liquid) equilibrium data of (methanol + water), (water + glycerol) and (methanol + glycerol) systems at atmospheric and sub-atmospheric pressures

Experimental (vapour + liquid) equilibrium results for the binary systems, (methanol + water) at the local atmospheric pressure of 95.3 kPa and at sub-atmospheric pressures of (15.19, 29.38, 42.66, 56.03, and 67.38) kPa, (water + glycerol) system at pressures (14.19, 29.38, 41.54, 54.72, 63.84, and...

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Bibliographic Details
Published in:The Journal of chemical thermodynamics 2010-05, Vol.42 (5), p.621-624
Main Authors: Soujanya, J., Satyavathi, B., Vittal Prasad, T.E.
Format: Article
Language:English
Subjects:
(Vapour + liquid) equilibrium
Barometric pressure
Chemistry
Exact sciences and technology
General and physical chemistry
Glycerol
Glycerols
Liquid-vapor equilibria
Liquids
Mathematical analysis
Mathematical models
Methanol
Methyl alcohol
Optimization
Phase equilibria
Vapour
Water
Wilson model
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Summary:Experimental (vapour + liquid) equilibrium results for the binary systems, (methanol + water) at the local atmospheric pressure of 95.3 kPa and at sub-atmospheric pressures of (15.19, 29.38, 42.66, 56.03, and 67.38) kPa, (water + glycerol) system at pressures (14.19, 29.38, 41.54, 54.72, 63.84, and 95.3) kPa and the (methanol + glycerol) system at pressures (32.02 and 45.3) kPa were obtained over the entire composition range using a Sweitoslwasky-type ebulliometer. The relationship of the liquid composition ( x 1) as a function of temperature ( T) was found to be well represented by the Wilson model. Computed vapour phase mole fractions, activity coefficients and the measured values along with optimum Wilson parameters are presented.
ISSN:0021-9614
1096-3626
DOI:10.1016/j.jct.2009.11.020