The study of some physico-chemical properties of melt KCl - NaCl mixture
Keywords: salts, melt, surface tension, density, molar volumes
AbstractThe aim of this paper was to examine the surface tension of the melt mixture of salts NaCl and KCl at temperatures 750, 800 and 850 °C by maximum bubble pressure method. Some difference between measured values of the surface tension as dependence on the method of calculation was observed. This difference results from the diameter of used capillary and does not depend on the temperature. The differences between experimentally measured values of surface tension and literary sources are trivial. The experimental results are in accordance with the literature data confirming unsuitability of maximum bubble pressure method for measurement of the melt density. The experimental result will be used as a base for the study of melt salts ternary systems. On the other side maximum bubble pressure method is the most suitable method for measurement of surface tension of melt salts, but it is unsuitable for measurement of the melt density.
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