Abstract
Based on a study of the phase equilibria in cuts of a Mg(NO3)2–Ca(NO3)2–H2O system at temperatures of 0 to–50°C, new deicers have been developed, including a liquid solution of magnesium and calcium nitrates and a solid composition of dehydrated nitrates. The ice-melting capacity of the agents under equilibrium conditions was determined. It was established that agents made of dehydrated magnesium and calcium nitrates interact with ice via heat release, which accelerates ice melting. The corrosion activity of liquid of a nitrate agent toward metals (in the collaboration with the All-Russian Institute of Aviation Materials) was determined. It was established that it can be significantly decreased at the introduction of a corrosion inhibitor. The possibility of synthesizing agents from natural mineral raw materials (dolomite, magnesite, and calcite) has been considered.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
Goloshchapov, M.V., Izv. Voronezh. Gos. Pedagog. Inst., 1955, vol. 16, p. 19.
Danilov, V.P., Frolova, E.A., Kondakov, D.F., Avdyushina, L.I., and Orlova, V.T., Search for low-temperature anti-ice compositions in the Ca(NO3)2–Mg(NO3)2–CO(NH2)2–H2O and study of their properties, Khim. Tekhnol., 2010, vol. 11, no. 4, pp. 193–198.
Kirgintsev, A.N., Trushnikova, L.N., and Lavrent’ev, V.G., Rastvorimost’ neorganicheskikh veshchestv v vode: Spravochnik (Solubility of Inorganic Compounds in Water. A Handbook), Leningrad: Khimiya, 1972.
GOST (State Standard) 23672–79: Dolomite for Glass Industry. Specifications, 1987.
Pozin, M.E., Tekhnologiya mineral’nykh solei (Mineral Salt Technology), Leningrad: Khimiya, 1987, vols. 1, 2.
Berezin, V.I., Bykov, A.V., Danilov, V.P., Buza, V.I., Vorob’ev, V.S., Vorob’ev, F.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.
Lanovetskii, S.V., Physical and chemical foundations of reagent-grade magnesium nitrate hexahydrate crystallization and production technology, Cand. Sci. (Eng.) Dissertation, Perm: Perm State Technical Univ., 2006.
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © V.P. Danilov, E.A. Frolova, D.F. Kondakov, L.I. Avdyushkina, 2015, published in Khimicheskaya Tekhnologiya, 2015, Vol. 16, No. 2, pp. 87–90.
Rights and permissions
About this article
Cite this article
Danilov, V.P., Frolova, E.A., Kondakov, D.F. et al. Deicers based on magnesium and calcium nitrates. Theor Found Chem Eng 50, 479–482 (2016). https://doi.org/10.1134/S0040579516040084
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0040579516040084