Granulated Anti-Icing Reagent on the Basis of Dehydrated Magnesium and Calcium Nitrates
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The phase composition of the product of thermal dehydration of a mixture of crystallohydrates of magnesium and calcium nitrates with a bulk composition Mg(NO3)2 · Ca(NO3)2 ⋅ 2.7H2O is determined via X-ray phase analysis and its IR spectrum is obtained. It is found that the sample solidifies upon cooling to form a compact nonhygroscopic mass. A sample with a higher concentration of water is hygroscopic and deliquescent in air. Deeper dehydration is accompanied by hydrolysis with the formation of basic salts. The anti-icing properties of the dehydrated nitrate sample are determined.
Keywords:anti-icing properties dehydrated calcium and magnesium nitrates phase equilibria granulated anti-icing reagents
The IR spectra and X-ray diffraction patterns of the samples were obtained at the Center for Shared Use of the Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences.
This work was supported by the Program of Basic Research of the Division of Chemistry and Material Sciences of the Presidium of the Russian Academy of Sciences “Creation of New Types of Products from Mineral Raw Materials,” project OХ5.1.
- 1.Danilov, V.P., Frolova, E.A., Kondakov, D.F, and Avdyushkina, L.I., Deicing reagents based on magnesium and calcium nitrates, Khim. Tekhnol., 2015, vol. 16, no. 2, pp. 87–90.Google Scholar
- 2.Frolova, E.A., Kondakov, D.F., Avdyushkina, L.I., Bykov, A.V., Shkarupin, A.N., and Danilov, V.P., Phase equilibria in water–salt systems from sodium, magnesium, and calcium nitrates and deicing properties of nitrate compositions, Theor. Found. Chem. Eng., 2017, vol. 51, no. 4, pp. 523–526. https://doi.org/10.1134/S0040579517040066 CrossRefGoogle Scholar