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The phase diagram and supercooling conditions for the Ca(NO3)2−CaCl2−H2O system

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Abstract

The liquidus temperature and induction periods were measured for crystallization in a system of calcium nitrate, calcium chloride, and water over a concentration range of 5–20 mole% Ca(II), i.e., R=4–18 [R=moles H2O/moles Ca(II)] and ycl=0–1 [ycl=moles Cl−/moles (NO −3 +Cl−)]. A ternary phase diagram was constructed, and qualitative dependences of the supercooling at which the solution began to crystallize on the system composition were found. A wide range of stability toward crystallization was found for solutions withR=4–10 and ycl=0–0.7 The relationships between the system stability toward crystallization and the viscosity, glass-transition temperature, and the liquidus temperature are discussed.

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Authors and Affiliations

  1. The Institute of Inorganic Chemistry, Czechoslovak Academy of Sciences, Majakovského 24, 16000, Prague 6, Czechoslovakia

    P. Pacák & I. Sláma

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  1. P. Pacák
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  2. I. Sláma
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Pacák, P., Sláma, I. The phase diagram and supercooling conditions for the Ca(NO3)2−CaCl2−H2O system. J Solution Chem 8, 529–537 (1979). https://doi.org/10.1007/BF00655209

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  • DOI: https://doi.org/10.1007/BF00655209

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