DECOMPOSITION PRESSURES OF POTASSIUM AND SODIUM FLUOROBORATES AND FLUOROTITANATES

Citation
Ms. Lee et al., DECOMPOSITION PRESSURES OF POTASSIUM AND SODIUM FLUOROBORATES AND FLUOROTITANATES, Transactions - Institution of Mining and Metallurgy. Section C. Mineral processing & extractive metallurgy, 103, 1994, pp. 26-32
Citations number
14
Categorie Soggetti
Metallurgy & Mining",Mineralogy
ISSN journal
03719553
Volume
103
Year of publication
1994
Pages
26 - 32
Database
ISI
SICI code
0371-9553(1994)103:<26:DPOPAS>2.0.ZU;2-W
Abstract
The decomposition pressures of KBF4(l), NaBF4(s), K2TiF6(l) and Na2TiF 6(s) have been experimentally determined by the transportation techniq ue. The results were analysed to obtain values for the enthalpies and entropies of vaporization of the salts in question. The vapour pressur es of the sodium salts were found to be significantly higher than thos e of the corresponding potassium salts, which limits their use in the production of aluminium grain-refining alloys.