title: Solubility of Al2O3 in some chloride-fluoride melts.
abstract: Alumina solubility in chloride-fluoride melts of KCl-NaCl-NaF mixtures with ratios of 0.425:0.425:0.15 (I), 0.38:0.38:0.24 (II), and 0.35:0.35:0.30 (III) (molar fractions) was investigated in the 973-1123 K temperature range using the isothermal saturation method. Al2O3 solubility in the ionic melts studied was shown to be on the order of 0.06 g kg(-1) for system I, 0.12 g kg(-1) for system II, and 0.14 g kg(-1) for system III at 1073 K. All the "Al2O3 + melt" systems were found to demonstrate negative deviations from the ideal solutions. The solubility of Al2O3 in all the melts increases with the temperature increase; however, the dependences of -log N(Al2O3) versus T(-1) were characterized by the slopes (2.6 +/- 0.4) x 10(3) K (I and II) and (2.4 +/- 0.6) x 10(3) K (III), which were considerably less than the slope predicted by the Shreder-Le Chatelier equation (approximately 5.8 x 10(3)).
authors.affiliation: Institute for Scintillation Materials of National Academy of Sciences of Ukraine, Lenin Avenue, 60 Kharkov, 61001 Ukraine. cherginets@isc.kharkov.com
authors.forename: Victor L
authors.initials: VL
authors.lastname: Cherginets
authors.forename: Vyacheslav N
authors.initials: VN
authors.lastname: Baumer
authors.forename: Sergey S
authors.initials: SS
authors.lastname: Galkin
authors.forename: Lidiya V
authors.initials: LV
authors.lastname: Glushkova
authors.forename: Tatyana P
authors.initials: TP
authors.lastname: Rebrova
authors.forename: Zoya V
authors.initials: ZV
authors.lastname: Shtitelman