Abstract
Phase equilibria and critical phenomena in the sodium nitrate-water-isopropanol ternary system, where a boundary binary liquid system shows no immiscibility over the entire temperature range of its liquid state, were studied in the range from 5 to 90°C using a visual polythermal method. The formation temperature of a monotectic critical tie-line was determined to be 6.1°C, and the solution compositions corresponding to critical solution points at various temperatures were determined. Isopropanol partition coefficients between the aqueous and organic phases of monotectic equilibrium were calculated for seven temperatures. The isopropanol salting out from aqueous solutions by sodium nitrate was shown to be enhanced by rising temperature. Isothermal phase diagrams of the title system were constructed to verify a fragment of the general scheme of topological transformations of phase diagrams for salt-binary solvent ternary systems with salting out.
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K. K. Il’in, D. G. Cherkasov, and S. A. Yakushev, Zh. Obshch. Khim. 68(2), 250 (1998).
S. I. Sinegubova, K. K. Il’in, D. G. Cherkasov, et al., Zh. Prikl. Khim. 77(12), 1945 (2004).
S. I. Sinegubova, D. G. Cherkasov, and K. K. Il’in, Zh. Prikl. Khim. 78(3), 398 (2005).
D. G. Cherkasov, V. F. Kurskii, S. I. Sinegubova, et al., Zh. Neorg. Khim. 54(6), 1032 (2009) [Russ. J. Inorg. Chem. 54 (6), 969 (2009)].
K. K. Il’in, Izv. Saratovsk. Univ., Ser. Khim. Biol. Ekol. 9(1), 3 (2009).
P. M. Ginnings and Z. T. Chen, J. Am. Chem. Soc. 53(10), 3765 (1931).
V. F. Kurskii, D. G. Cherkasov, and K. K. Il’in, Izv. Saratovsk. Univ., Ser. Khim. Biol. Ekol. 6(1/2), 9 (2006).
D. G. Cherkasov, V. F. Kurskii, and K. K. Il’in, Zh. Neorg. Khim. 53(1), 146 (2008) [Russ. J. Inorg. Chem. 53 (1), 139 (2008)].
R. Traybal, Liquid Extraction (McGraw-Hill, New York, 1963; Khimiya, Moscow, 1966) [in Russian].
The Chemical Encyclopedia, Ed. by I. L. Knunyants (Sovetskaya entsiklopediya, Moscow, 1998–1998), Vols. 1–5 [in Russian].
A. N. Kirgintsev, L. N. Trushnikova, and V. G. Lavrent’eva, Water Solubilities of Inorganic Materials: A Handbook (Khimiya, Leningrad, 1972) [in Russian].
The Solubility Handbook: Binary Systems, Ed. by V. V. Kafarov (Izd-vo Akad. Nauk, Moscow/Leningrad, 1961), Vol. 1, Book 1 [in Russian].
M. Moolel and H. Schneider, Z. Phys. Chem. (Frankfurt/Main) 74(3–6), 237 (1971).
K. K. Il’in, V. F. Kurskii, D. G. Cherkasov, et al., Zh. Fiz. Khim. 82(3), 421 (2008) [Russ. J. Phys. Chem. 82 (3), (2008)].
R. V. Mertslin and V. F. Ust’-Kachkintsev, Zh. Obshch. Khim. 5(6), 771 (1935).
J. L. Copp and D. H. Everet, Disc. Faraday Soc., No. 15, 174 (1953).
N. M. Belogorodetskaya, S. V. Shadskii, and G. M. Poltoratskii, Proceedings of the 5th Republican Conference of Young Chemical Scientists (Tallinn, 1983), p. 205 [in Russian].
G. A. Krestov, The Thermodynamics of Ionic Processes in Solutions (Khimiya, Leningrad, 1984) [in Russian].
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Original Russian Text © D.G. Cherkasov, K.K. Il’in, V.F. Kurskii, 2011, published in Zhurnal Neorganicheskoi Khimii, 2011, Vol. 56, No. 5, pp. 838–842.
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Cherkasov, D.G., Il’in, K.K. & Kurskii, V.F. Topological transformation of a phase diagram for the sodium nitrate-water-isopropanol ternary system. Russ. J. Inorg. Chem. 56, 787–791 (2011). https://doi.org/10.1134/S0036023611050068
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DOI: https://doi.org/10.1134/S0036023611050068