Calcium hydride
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| Calcium hydride | |
|---|---|
| IUPAC name | Calcium hydride |
| Identifiers | |
| InChI | InChI=1/Ca.2H/q+2;2*-1 |
| InChIKey | UUGAXJGDKREHIO-UHFFFAOYAG |
| Standard InChI | InChI=1S/Ca.2H/q+2;2*-1 |
| Standard InChIKey | FAQLAUHZSGTTLN-UHFFFAOYSA-N |
| CAS number | [] |
| EC number | |
| ChemSpider | |
| Properties[1] | |
| Chemical formula | CaH2 |
| Molar mass | 42.094 g mol–1 |
| Appearance | grey powder (white when pure) |
| Density | 1.9 g cm–3 |
| Melting point |
816 °C (under H2) |
| Solubility in water | reacts |
| Structure[2][3] | |
| Crystal structure | PbCl2, oP12 |
| Space group | Pnma (No. 62) |
| Coordination geometry | Tricapped trigonal prismatic (Ca2+) |
| Hazards[4] | |
| EU index number | 001-004-00-5 |
| GHS pictograms | 
|
| GHS signal word | DANGER |
| GHS hazard statements | H260 |
| Related compounds | |
| Other cations | Beryllium hydride Magnesium hydride Strontium hydride Barium hydride |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) | |
Calcium hydride, CaH2, is an ionic (or "saline") hydride. It is used as a drying agent, particularly for organic solvents
References
- ↑ CRC Handbook of Chemistry and Physics, 62nd ed.; Weast, Robert C., Ed.; CRC Press: Boca Raton, FL, 1981; p B-87. ISBN 0-8493-0462-8.
- ↑ Greenwood, Norman N.; Earnshaw, A. Chemistry of the Elements; Pergamon: Oxford, 1984; p 72. ISBN 0-08-022057-6.
- ↑ Wells, A. F. Structural Inorganic Chemistry, 5th ed.; Clarendon Press: Oxford, 1984. ISBN 0-19-855370-6.
- ↑ Index no. 001-002-00-4 of Annex VI, Part 3, to Regulation (EC) No 1272/2008 of the European Parliament and of the Council of 16 December 2008 on classification, labelling and packaging of substances and mixtures, amending and repealing Directives 67/548/EEC and 1999/45/EC, and amending Regulation (EC) No 1907/2006. OJEU L353, 31.12.2008, pp 1–1355 at p 340.
External links
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See also the corresponding article on Wikipedia. |
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