Topological transformation of the cesium nitrate-water-isopropanol ternary phase diagram |
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Authors: | D G Cherkasov V F Kurskii S I Sinegubova and K K Il’in |
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Institution: | (1) Saratov State University, Astrakhanskaya ul. 83, Saratov, 410026, Russia |
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Abstract: | Phase equilibria and critical phenomena in the cesium nitrate-water-isopropanol system, where the liquid binary subsystem
does not separate over the entire temperature range of its liquid state, were studied within 70–120°C using visual polythermal
analysis. The temperature at which the monotectic critical tie-line appears (79.0°C) and the compositions of the solutions
at critical solution points at various temperatures were determined. Isopropanol distribution coefficients between aqueous
and organic monotectic phases were calculated for five temperatures. The salting out of isopropanol by cesium nitrate from
aqueous solutions is enhanced by temperature elevation. The phase isotherms validated a previously reported fragment of the
general scheme of the topological transformation of ternary phase diagrams for salt-binary solvent systems with salting out.
Original Russian Text ? D.G. Cherkasov, V.F. Kurskii, S.I. Sinegubova, K.K. Il’in, 2009, published in Zhurnal Neorganicheskoi
Khimii, 2009, Vol. 54, No. 6, pp. 1032–1036. |
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