Phase equilibria and salting out of butyric acid in the ternary system potassium nitrate + water + 2-(2-butoxyethoxy)ethanol
Visual polythermal method in the bynary system of water-2-(2-butoxyethoxy) ethanol in the range of –25?0° C the ice melting line is determined and the phase equilibria in the ternary system potassium nitrate–water–2-(2-butoxyethoxy) ethanol are studied in the range of 10.0–90.0° C. The ice melting line in the water–2-(2-butoxyethoxy) ethanol binary system is a flat, smooth line. This form of the melting line shows a hidden separation in liquid mixtures. It has been found that potassium nitrate salts out 2-(2-butoxyethoxy)ethanol from water-organic mixtures, and at 31.7° C in the ternary system of potassium nitrate–water–2-(2-butoxyethoxy)ethanol, separation begins. The compositions of the solutions corresponding to the critical solubility points at several temperatures have been determined. The isothermal phase diagrams of the ternary system at 10.0, 25.0, 30.0, 31.7, 35.0, 50.0, 90.0° С have been plotted. The distribution coefficients of 2-(2-butoxyethoxy) ethanol between the liquid phases of monotectic state have been calculated. It is shown that the effect of salting-out 2-(2-butoxyethoxy) ethanol from aqueous solutions with potassium nitrate increases with increasing temperature. The concentration of 2-(2-butoxyethoxy) ethanol in the organic phase of monotectics at 90.0° C is 90 wt.% with a distribution coefficient of 897.
- Marcus Y. Preferential solvation in mixed solvents X. Completely miscible aqueous co-solvents binary mixtures at 298.15 K // Monatsh. Chem. 2001. Vol. 132, № 11. P. 1387–1411.
- Stephenson R. M. Mutual solubilities: water-glycol ethers and water-glycol esters // J. Chem. Eng. Data. 1993. Vol. 38, № 1. P. 134–138. https://doi.org/10.1021/je00009a033
- Park S.-B., Shim C.-S., Lee H., Lee K.-H. Solubilities of carbon dioxide in the aqueous potassium carbonate and potassium carbonate-poly(ethylene glycol) solutions // Fluid Phase Equilib. 1997. Vol. 134. P. 141–149. https://doi.org/10.1016/S0378-3812(97)00052-6
- Fleming III P. D., Vinatieri J. E. The Role of Critical Phenomena in Oil Recovery Systems Employing Surfactants // J. Colloid Interface Sci. 1981. Vol. 81, № 2. P. 319–331. https://doi.org/10.1016/0021-9797(81)90414-8
- Surfactant Based Separation Processes / N. D. Gullickson, J. F. Scamehorn, J. H. Harwell, eds. Surfactant Science Series 33. N.Y. : Marcel Dekker, 1989. Chapter 6.
- Lugo L., Lopez E. R., Comunas M. J. P., Garc?a J., Fernandez J. p?T Measurements and EoS Predictions of Glycol Ethers from (283.15 to 353.15) K at Pressures up to 25 MPa // J. Chem. Eng. Data. 2004. Vol. 49. P. 1400–1405. https://doi.org/10.1021/je049893r
- Kang K., Wang X., Yang F., Prausnitz J. M. Densities of Diethylene Glycol, Monobutyl Ether, Diethylene Glycol Dibutyl Ether, and Ethylene Glycol Monobutyl Ether from (283.15 to 363.15) K at Pressures up to 60 MPa // J. Chem. Eng. Data. 2016. Vol. 61. P. 2851–2858. https://doi.org/10.1021/acs.jced.6b00192
- Tsu-Chiao. Densities and Refractive Indices of Diethylene Glycol Ether-Water Solutions. Diethylene Glycol Monomethyl, Monoethyl, and Monobutyl Ethers // J. Chem. Eng. Data. 1961. Vol. 6, № 2. P. 192–193. https://doi.org/10.1021/je60010a006
- Chiou D.-R., Chen S.-Y., Chen L.-J. Density, Viscosity, and Refractive Index for Water + 2-Butoxyethanol and + 2-(2-Butoxyethoxy)ethanol at Various Temperatures // Chem. Eng. Data. 2010. Vol. 55, № 2. P. 1012–1016. https://doi.org/10.1021/je900478c
- Dhondge S. S., Pandhurnekar C. P., Parwate D. V. Density, Speed of Sound, and Refractive Index of Aqueous Binary Mixtures of Some Glycol Ethers at T = 298.15 K // Chem. Eng. Data. 2010. Vol. 55, № 9. P. 3962–3968. https://doi.org/10.1021/je901072c
- Cibulka I., Moravek P. Partial molar volumes of organic solutes in water. XXX. Two poly(ethylene glycol) monoalkyl ethers, C4E2 and C1E3, at temperatures T = 298 K to 573 K and pressures up to 30 MPa // J. Chem. Thermodyn. 2019. Vol. 139, № 105874 (9 p.). https://doi.org/10.1016/j.jct.2019.07.016
- Kaulgud M. V., Patil K. J. Volumetric and isentropic compressibility behavior of aqueous amine solutions. I // J. Phys. Chem. 1974. Vol. 78, № 7. P. 714–717. https://doi.org/10.1021/j100600a014
- Aminabhavi T. M., Gopalakrishna B. Density, Viscosity, Refractive Index, and Speed of Sound in Aqueous Mixtures of N,N-Dimethylformamide, Dimethyl Sulfoxide, N,N-Dimethylacetamide, Acetonitrile, Ethylene Glycol, Diethylene Glycol, 1,4-Dioxane, Tetrahydrofuran, 2-Methoxyethanol, and 2-Ethoxyethanol at 298.15 K // J. Chem. Eng. Data. 1995. Vol. 40, № 4. P. 856–861. https://doi.org/10.1021/je00020a026
- Matteoli E., Lepori L. Solute–solute interactions in water. II. An analysis through the Kirkwood–Buff integrals for 14 organic solutes // J. Chem. Phys. 1984. Vol. 80, № 6. P. 2856–2863. https://doi.org/10.1063/1.447034
- Pal A., Singh Y. P. Speeds of sound and isentropic compressibilities of {xH(CH2)vO(CH2) 2O(CH2) 2OH+(1-x)H2O}, (v = 1,2 and 4) at the temperature 298.15 K // J. Chem. Thermodyn. 1996. № 28. P. 143–151.
- Дымент О. Н., Казанский К. С., Мирошников А. Н. Гликоли и другие производные окисей этилена и пропелена. М. : Химия, 1976. 376 с.
- Трейбал Р. Жидкостная экстракция / пер. с англ. ; под ред. С. З. Кагана. М. : Химия, 1966. 724 с.
- Cherkasov D. G., Kurskii V. F., Il’in K. K. Topological transformation of the phase diagram for the ternary system cesium nitrate-water-acetonitrile. Russ. J. Inorg. Chem., 2008, vol. 53, no. 1, pp. 139–145 (in Russian). https://doi.org/10.1134/S0036023608010208 1
- Cherkasov D. G., Smotrov M. P., Il’in K. K. Topological transformation of the phase diagram of the potassium nitrate-water-n-butoxyethanol ternary system. Russ. J. Phys. Chem., 2010, vol. 84, pp. 922–927 (in Russian).
- Quirion F., Magid L. J., Driffords M. Aggregation and Critical Behavior of 2-Butoxyethanol in Water. Langmuir, 1990, vol. 6, pp. 244–249.