Abstract
Phase equilibria in the sections of the Ca(NO3)2–CO(NH2)2–H2O system and the deicing properties of calcium nitrate and carbamide mixtures with a ratio between the components ranging from 90 : 10 to 40 : 60 have been studied. Eutectic temperatures with ice, melting ability at a temperature of –5 and ‒10°C, and the character of interaction with water (the occurrence of an endothermic or exothermic effect) have been determined for these mixtures. Mixtures having the best anti-icing properties are revealed.
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REFERENCES
Yanat’eva, O.K., Astaf’eva, E.Ya., and Orlova, V.G., The calcium nitrate–carbamide–water system at 0°C, Zh. Neorg. Khim., 1970, vol. 15, p. 2819.
Kaganskii, I.M., Mukhlya, G.S., Kharlamova, V.M., and Markova, A.S., Solubility in the calcium nitrate–carbamide–water system, Issledovaniya v oblasti khimii i tekhnologii mineral’nykh solei i okislov (Research in the Field of the Chemistry and Technology of Mineral Salts and Oxides), Pozin, M.E., Ed., Moscow: Nauka, 1965, pp. 5–11.
Sakaj, W., The calcium nitrate–carbamide–water system at 25°C, J. Soc. Chem. Ind., Jpn., 1940, vol. 43, pp. 394–395.
Isakova, S. and Sulaimankulov, K., The calcium nitrate–carbamide–water system at 30°C, Khimiya kompleksnykh soedinenii redkikh i soputstvuyushchikh elementov: sbornik statei (The Chemistry of the Complex Compounds of Rare and Accompanying Elements: A Collection of Articles), Usubakunov, M., Ed., Frunze: Ilim, 1970, p. 154.
Sulaimankulov, K., Abykeev, K., Murzuibraimov, B., and Nogoev, K., Atlas diagramm rastvorimosti troinykh vodno-solevykh karbamidnykh sistem (Atlas of Solubility Diagrams for Ternary Water–Salt Carbamide Systems), Bishkek: Ilim, 1980.
Orlova, V.T., Danilov, V.P., Bykov, A.V., Tin’gaev, O.P., and Nikolaev, V.V., RF Patent 2173329, 2001.
Berezin, V.I., Buza, A.I., Bykov, A.V., Vorob’ev, V.S., Vorob’ev, F.P., Danilov, V.P., Zuev, A.A., Kochemba, Yu.I., Nikolaev, V.V., Orlova, V.T., Pecherskii, M.A., Smirnov, A.L., Tin’gaev, O.P., and Yulis, A.Ya., RF Patent 2148018, 2000.
Danilov, V.P., Frolova, E.A., Kondakov, D.F., Avdyushkina, L.I., and Orlova, V.T., Low-temperature anti-icing reagents in the Ca(NO3)2–Mg(NO3)2–CO(NH2)2–H2O system and their properties, Theor. Found. Chem. Eng., 2011, vol. 45, p. 697. https://doi.org/10.1134/S0040579511050058
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Danilov, V.P., Frolova, E.A. & Kondakov, D.F. Phase Equilibria in the Sections of the Ca(NO3)2–CO(NH2)2–H2O System and Deicing Properties of Nitrate–Urea Mixtures. Theor Found Chem Eng 55, 990–995 (2021). https://doi.org/10.1134/S0040579521050031
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DOI: https://doi.org/10.1134/S0040579521050031