Difference between revisions of "Calcium hydride"
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| CrystalStruct = [[Lead chloride structure|PbCl<sub>2</sub>]], [[Pearson symbol|oP12]] | | CrystalStruct = [[Lead chloride structure|PbCl<sub>2</sub>]], [[Pearson symbol|oP12]] | ||
| SpaceGroup = P''nma'' (No. 62) | | SpaceGroup = P''nma'' (No. 62) | ||
+ | | Coordination = Tricapped trigonal prismatic (Ca<sup>2+</sup>) | ||
}} | }} | ||
| Section7 = {{Chembox Hazards | | Section7 = {{Chembox Hazards |
Revision as of 12:31, 20 June 2010
Calcium hydride | |
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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
See also the corresponding article on Wikipedia. |
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