| Authors | محسن محسن نیا,سیدحسین رسا,حمید مدرس |
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| Journal | Journal of Chemical & Engineering Data |
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| Page number | 946 |
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| Volume number | 53 |
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| IF | ثبت نشده |
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| Paper Type | Full Paper |
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| Published At | 2008-04-22 |
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| Journal Grade | Scientific - research |
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| Journal Type | Electronic |
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| Journal Country | Iran, Islamic Republic Of |
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| Journal Index | JCR |
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Abstract
The compositions of coexisting phases have been determined for aqueous two-phase systems containing
poly(ethylene glycol) of nominal molecular weight 20000 and copper sulfate at (290.15, 299.15, 308.15,
and 317.15) K. The effect of temperature on the liquid–liquid equilibrium was discussed. The experimental
compositions of coexisting phases of the systems were used to obtain interaction parameters in universal
quasichemical theory (UNIQUAC) activity coefficient models. The experimental tie line data were compared
with those obtained using the UNIQUAC model. The results of comparison were indicated by calculation
of the root-mean-square deviations (rmsd). The calculated results show good agreement with the experimental
data.
