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Journal of Applied Sciences
  Year: 2007 | Volume: 7 | Issue: 7 | Page No.: 1053-1060
DOI: 10.3923/jas.2007.1053.1060
Effect of Inorganic Salts on Ternary Equilibrium Data of Propionic Acid-Water-Solvents Systems
Bhupesh C. Roy, M.R. Awual and M. Goto

Liquid-Liquid Equilibrium (LLE) data were obtained for the pseudo-ternary systems of propionic acid (PA) + water + solvents (methyl isopropyl ketone and methyl isobutyl ketone) + salts (NaCl and KCl) at 25-26°C in order to study the effect of salts on extraction equilibrium of these systems by comparing with the same systems without salt. Mutual solubility curves, tie-line data, distribution coefficient, selectivity diagrams and separation factor data were determined for these systems. The salting-out effect was investigated by using inorganic salts NaCl or KCl at two concentrations of each salt within their solubility limits. The results obtained in these experiments showed that the salts NaCl and KCl significantly affect the solubility of PA in the organic solvents, as well as the distribution coefficients and separation factors for PA by changing their equilibrium composition and the selectivity of the solvents while the region of heterogeneity increases as compared to the same system of without salt. The thermodynamic consistency of the equilibrium tie-line data was ascertained by Othmer-Tobias plots as well as by Hand plots.
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How to cite this article:

Bhupesh C. Roy, M.R. Awual and M. Goto, 2007. Effect of Inorganic Salts on Ternary Equilibrium Data of Propionic Acid-Water-Solvents Systems. Journal of Applied Sciences, 7: 1053-1060.

DOI: 10.3923/jas.2007.1053.1060






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