Lithium fluoride is an inorganic combine with the formula LiF. It is the lithium salt of hydrofluoric acid. It is a simple ionic compound. Its structure is analogous to that of sodium chloride, but it is less meltable in water. It is mainly used as a component part of molten salts.
Lithium fluoride is geared up from lithium hydroxide and hydrogen fluoride or by dissolving lithium carbonate in excess hydrogen fluoride, evaporating to dryness and heating to red heat.
Fluorine is produced by the electrolysis of molten potassium bifluoride. This electrolysis proceeds more efficiently while the electrolyte takes a few percent of LiF, maybe because it facilitates formation of Li-C-F interface on the carbon electrodes. A valuable molten salt consists of a commixture of LiF, conjointly with sodium fluoride and potassium fluoride
Lithium fluoride is also applied as a means to record ionizing radiation exposure from gamma rays, beta particles, and neutrons (indirectly, using the 6
3Li (n,alpha) nuclear reaction) in thermoluminescent dosimeters.
Lithium fluoride is widely applied in PLED as a coupling layer to raise electron injection. The heaviness of LiF layer is usually approximately 1 nm.
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From: Fluorides
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