Cadmium hydride

General
Surname	Cadmium hydride
other names	Cadmium dihydride Cadmium (II) hydride
Molecular formula	CdH 2
External identifiers / databases
CAS number 72172-64-6 Wikidata Q3462573
properties
Molar mass	114.4 g mol −1
safety instructions
GHS hazard labeling from  Regulation (EC) No. 1272/2008 (CLP) , expanded if necessary Caution H and P phrases H: 332-312-302-410 P: ?
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Cadmium hydride is a chemical compound of cadmium from the group of hydrides . In addition to the dihydride, the monohydride CdH is also known.

Extraction and presentation

Cadmium hydride can be obtained by reacting cadmium (II) iodide or dimethylcadmium with lithium aluminum hydride in diethyl ether at −78 ° C. The compound was first synthesized in 1951.

${\displaystyle \mathrm {2\ LiAlH_{4}+CdI_{2}\longrightarrow CdH_{2}+2\ AlH_{3}+2\ LiI} }$

properties

Cadmium hydride is an unstable solid. It decomposes at a temperature of -20 ° C slowly and spontaneously at room temperature .

Individual evidence

1. ↑ Entry on cadmium compounds in the GESTIS substance database of the IFA , accessed on March 23, 2019 (JavaScript required)
2. ↑ Not explicitly listed in Regulation (EC) No. 1272/2008 (CLP) , but with the specified labeling it falls under the group entry cadmium compounds, with the exception of cadmium selenosulphide (xCdS.yCdSe) and reaction mass of cadmium sulphide and zinc sulphide (xCdS.yZnS) , Reaction mass of cadmium sulfide and mercury sulfide (xCdS yHgS) as well as the cadmium compounds, which are listed separately in this appendix in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on March 23, 2019. Manufacturers or distributors can use the harmonized classification and expand labeling .
3. ↑ External identifiers or database links for cadmium monohydride : CAS number: 13966-61-5, PubChem : 57459443 , ChemSpider : 57566563 , Wikidata : Q82667517 .
4. ↑ ^{a b} Jane E. Macintyre: Dictionary of Inorganic Compounds . CRC Press, 1992, pp. 2798 ( limited preview in Google Book search).
5. ↑ Glenn D. Barbaras, Clyde Dillard, AE Finholt, Thomas Wartik, KE Wilzbach, HI Schlesinger: The Preparation of the Hydrides of Zinc, Cadmium, Beryllium, Magnesium and Lithium by the Use of Lithium Aluminum Hydride. In: Journal of the American Chemical Society. 73, 1951, pp. 4585-4590, doi : 10.1021 / ja01154a025 .