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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)

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