ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Phase Diagram of the System LiF—B₂0₃

M. Chrenková and V. Daněk

Institute of Inorganic Chemistry, Slovak Academy of Sciences, CS-842 36 Bratislava

Abstract: The phase diagram of the system LiF-B₂O₃ in the composition range up to 30 mole % B₂O₃, which is important from the TiB₂ electrochemical synthesis point of view, was measured. The system LiF-B₂O₃ is a quasi-binary one with a liquid immiscibility in the interval of 5-23 mole % B₂O₃. Up to ca. 5 mole % B₂O₃ LiF reacts with B₂O₃ under formation of LiBO₂ and BF₃, which escapes from the system, while at higher B₂O₃content lithium tetraborate is formed. The investigated system is obviously the projection of the nonlinear LiF-LiBO₂-B₂O₃ cross-section into the LiF-B₂O₃ joint.

Full paper in Portable Document Format: 463a167.pdf

Chemical Papers 46 (3) 167–169 (1992)