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・ Magnesium benzoate
・ Magnesium bicarbonate
・ Magnesium bromide
・ Magnesium carbonate
・ Magnesium chelatase
・ Magnesium chloride
・ Magnesium chromate
・ Magnesium citrate
・ Magnesium deficiency
・ Magnesium deficiency (medicine)
・ Magnesium deficiency (plants)
・ Magnesium diboride
・ Magnesium diglutamate
・ Magnesium diuranate
・ Magnesium Elektron
Magnesium fluoride
・ Magnesium formate
・ Magnesium gluconate
・ Magnesium glycinate
・ Magnesium hydride
・ Magnesium hydroxide
・ Magnesium in biology
・ Magnesium injection cycle
・ Magnesium iodide
・ Magnesium iron hexahydride
・ Magnesium iron silicate hydroxide
・ Magnesium lactate
・ Magnesium laureth sulfate
・ Magnesium levulinate
・ Magnesium malate


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Magnesium fluoride : ウィキペディア英語版
Magnesium fluoride

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Magnesium fluoride is an inorganic compound with the formula MgF2. The compound is a white crystalline salt and is transparent over a wide range of wavelengths, with commercial uses in optics that are also used in space telescopes. It occurs naturally as the rare mineral sellaite.
==Production and structure==
Magnesium fluoride is prepared from magnesium oxide with sources of hydrogen fluoride such as ammonium bifluoride:
:MgO + (NH4)HF2 → MgF2 + NH3 + H2O
Related metathesis reactions are also feasible.
The compound crystallizes as tetragonal birefringent crystals. Its structure is similar to that in rutile, featuring octahedral Mg2+ centers and 3-coordinate fluoride centres.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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