A simple correlation for estimating viscosities of solutions of salts in aqueous,non-aqueous and mixed solvents applicable to high concentration,temperature and pressure |
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Authors: | Anil Kumar |
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Abstract: | A new correlation is proposed to correlate the viscosities of salt solutions in aqueous, non-aqueous solvents and their mixtures. The correlation involves two parameters i.e. solvation number and ion-solvent interaction coefficient, which are well-documented quantities in the literature. The proposed correlation has been examined on the experimental viscosity data of salt solutions in aqueous, non-aqueous and their mixtures up to 473 K and 31 MPa pressure. The salts with various ionic charges were employed for testing the proposed correlation. Several non-aqueous solvents like dimethyl sulphoxide, alcohols and formamide were included for the data regression. The viscosities of these solutions can be correlated to within 0.7%. |
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Keywords: | Keywords: viscosity salt solution solvation number hydration number ion-solvent interaction coefficient |
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