A. B. Salyulev, V. Ya. Kudyakov, N. I. Moskalenko.
ABSTRACT
The volatility of saturated vapor components of molten UCl4–NaCl–KCl mixtures containing 2.0, 5.0, 12.2, 25.1, 32.9, and 49.7 mol % UCl4 in the temperature range 880–1200 K was measured using a transpiration technique. The chemical composition of saturated vapors was determined. It is concluded that double compounds of the most probable composition NaUCl5 and KUCl5 are present in the vapor phase, making a significant contribution to the total vapor pressure over molten mixtures. It was found that the investigated molten mixtures exhibit negative deviations from the ideal behavior.
KEY WORDS:
evaporation, volatility, vapor composition, molten mixtures, NaCl–KCl, UCl4.
DOI: 10.31857/S0235010621030117