the uses of Magnesium Fluoride

Use of Magnesium Fluoride
Used in the manufacture of ceramics, glass; the flux of themetallurgy of magnesium metal; coating of optical instruments,lenses and filters; the fluorescent material of the cathode ray screen;flux.
Preparation or sources
Mainly from the fluoride in the mineral periclase.
Laboratory, magnesium carbonate water transfer paste, graduallypour the reaction dilute half of hydrofluoric acid, the precipitate at400 ° C drying derived.
Toxicity and protective 
Magnesium Fluoride is toxic, the operator should wear the necessaryprotective equipment, poisoning, you should drink a lot of egg whiteand hospital.
Chemical properties of Magnesium Fluoride
Less active MgF2 chemical properties of ionic crystals, do not react with strong oxidizers, nitric acid can be dissolved:
Of MgF2 +2 HNO3 == of Mg (NO3) 2 +2 HF

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Specifications of Potassium Fluoborate

Potassium Fluoborate
Molecular formula:KBF4
Molecular weight :125.90
Properties: white granular crystal
Melting point :530°C
Assay :≥99%
Appearance White free flowing powder
Density at 25 degree Celcius 2.68
Potassium Fluoborate is also known as Potassium terafluoroborate and available in white crystalline powder. It is used for various applications such as a component in fluxing and grain refining agents for Aluminium and Magnesium. It can also be used as active filler in resin bonded abrasives for metal treatment and a component in fluxing agents for soldering and brazing.
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the applications of Lithium fluoride

In aqueous salts

Fluorine is produced by the electrolysis of aqueous potassium bifluoride. This electrolysis gain added calmly if the electrolyte contains a few percent of LiF, possibly because it facilitates accumulation of Li-C-F interface on the carbon electrodes. A advantageous aqueous salt, FLiNaK, consists of a admixture of Lithium fluoride, calm with sodium fluoride and potassium fluoride. THe primary coolant for the aqueous alkali reactor agreement was FLiBe; LiF-BeF_2 (66-33 mol%).

Optics

Because of its ample bandage gap, Lithium fluoride crystals are cellophane to abbreviate amicableness ultraviolet radiation, added so than any added material. LiF is accordingly acclimated in specialized UV optics.

Radiation detectors

It is aswell acclimated as a agency to almanac ionizing radiation acknowledgment from gamma rays, beta particles, and neutrons (indirectly, application the 6

3Li (n,alpha) nuclear reaction) in thermoluminescent dosimeters.

Nuclear reactors

Lithium fluoride (highly accomplished in the accepted isotope lithium-7) forms the basal basic of the adopted fluoride alkali admixture acclimated in liquid-fluoride nuclear reactors. Typically lithium fluoride is alloyed with beryllium fluoride to anatomy a abject bread-and-butter (FLiBe), into which fluorides of uranium and thorium are introduced. Lithium fluoride is awfully chemically abiding and LiF/BeF2 mixtures (FLiBe) accept low melting credibility (360 C - 459 C) and the best neutronic backdrop of fluoride alkali combinations adapted for reactor use. MSRE acclimated two altered mixtures in the two cooling circuits.

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