Calcium fluoride

From Academic Kids

</table> Calcium fluoride (CaF2) is an insoluble ioniccompound of calcium and fluorine. It occurs naturally as the mineral fluorite (also called fluorspar), and it is the source of most of the world's fluorine. It reacts with concentrated sulfuric acid to produce hydrogen fluoride: CaF2(s) + H2SO4(l) → CaSO4(s) + 2 HF(g) Calcium fluoride is commonly used as a window material when operating at infrared wavelengths as it is transparent in the IR. de:Kalziumfluorid

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Calcium_fluoride.jpg
Calcium fluoride

General

Name Calcium fluoride
Chemical formula CaF2
CAS registry number 7789-75-5</sub>
Appearance White (or colored by impurities) crystalline solid.

Physical properties

Formula weight 78.07 amu
Melting point 1675 K (1402 °C)
Boiling point 2770 K (2500 °C)
Density 3.18 ×103 kg/m3 (solid)
Solubility virtually none in water

SI units were used where possible. Unless otherwise stated, standard conditions were used.

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