Collect. Czech. Chem. Commun. 1981, 46, 2149-2157
https://doi.org/10.1135/cccc19812149

The temperature and concentration dependence of viscosity and the concentration dependence of glass transition temperature for the system calcium nitrate-potassium nitrate-water

Mojmír Skokánek, Jarmila Malá and Ivo Sláma

Institute of Inorganic Chemistry, Czechoslovak Academy of Sciences, 160 00 Prague 6

Abstract

The temperature and concentration dependence of viscosity of the system calcium nitrate-potassium nitrate-water was studied in the temperature range -20 to +75 °C for concentrations given by ionic fractions of the potassium salt of 0.1, 0.2, 0.3, 0.4, and 0.5. The mole fraction of the salts was within the range 0.047 to 0.238. The temperature and concentration dependence of viscosity has been correlated with empirical equations. An equation describing the temperature and concentration dependence of viscosity has been proposed on the basis of the variation of glass transition temperature with concentration.