497355
Calcium hydride
powder, 99.99% trace metals basis
Synonym(s):
Calcium dihydride
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About This Item
Empirical Formula (Hill Notation):
H2Ca
CAS Number:
Molecular Weight:
42.09
EC Number:
232-189-2
MDL number:
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
26111700
Assay:
99.99% trace metals basis
Form:
powder
assay
99.99% trace metals basis
form
powder
reaction suitability
core: calcium, reagent type: reductant
greener alternative product characteristics
Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.
sustainability
Greener Alternative Product
mp
816 °C (lit.)
greener alternative category
, Enabling
SMILES string
[Ca]
InChI
1S/Ca.2H
InChI key
FAQLAUHZSGTTLN-UHFFFAOYSA-N
General description
The crystal structure of calcium hydride is a slightly distorted hexagonal close packing. At elevated temperatures, calcium hydride acts as a strong reducing agent.1 Solid state reaction between hexachlorobenzene and calcium hydride has been studied in detail.
Atomic number of base material: 20
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Application
Calcium hydride (CaH2) is a metal hydride that can be used for a variety of greener applications such as:
- fabrication of hydrogen storage systems for fuel cell applications
- synthesis of porous aromatic frameworks (PAFs) for adsorption of organic pollutants
- formation of high temperature superconductors
Calcium hydride is widely used as a drying agent for organic solvents.1 It has been used to dry ε-caprolactone,benzene and toluene.
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signalword
Danger
hcodes
Storage Class
4.3 - Hazardous materials which set free flammable gases upon contact with water
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type P3 (EN 143) respirator cartridges
Hazard Classifications
Eye Irrit. 2 - Skin Irrit. 2 - Water-react. 1
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The crystal structure of calcium hydride.
Bergsma J and Loopstra BO
Acta Crystallographica, 15(1), 92-93 (1962)
Reversible hydrogen storage in the lithium borohydride?calcium hydride coupled system
Pinkerton FE and Meyer MS
Journal of alloys and compounds, 464(1-2), L1-L4 (2008)
Synthesis of a porous aromatic framework for adsorbing organic pollutants application
Ren H, et al.
Journal of Materials Chemistry, 21(28), 10348-10353 (2011)