Science Fair Project Encyclopedia
Calcium fluoride
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General |
|
|---|---|
| Name | Calcium fluoride |
| Chemical formula | CaF2 |
| CAS Registry number | 7789-75-5 |
| Appearance | White (or colored by impurities) crystalline solid. |
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Physical properties |
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| 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. | |
Calcium fluoride (CaF2) is an insoluble ionic compound 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:
10-26-2009 08:16:03
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details