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Sigma-Aldrich

Calcium hydride

greener alternative

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:
MDL number:
UNSPSC Code:
26111700
PubChem Substance ID:
NACRES:
NA.23

Quality Level

Assay

99.99% trace metals basis

form

powder

reaction suitability

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

SMILES string

[Ca]

InChI

1S/Ca.2H

InChI key

FAQLAUHZSGTTLN-UHFFFAOYSA-N

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General description

Atomic number of base material: 20
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.
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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.

Pictograms

FlameExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - Water-react 1

Storage Class Code

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

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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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)
Superconductive sodalite-like clathrate calcium hydride at high pressures
Wang H, et al.
Proceedings of the National Academy of Sciences, 109(17), 6463-6466 (2012)
Sang Cheon Lee et al.
Journal of controlled release : official journal of the Controlled Release Society, 89(3), 437-446 (2003-05-10)
Polymeric micelles based on amphiphilic block copolymers of poly(2-ethyl-2-oxazoline) (PEtOz) and poly(epsilon -caprolactone) (PCL) were prepared in an aqueous phase. The loading of paclitaxel into PEtOz-PCL micelles was confirmed by 1H-NMR spectra. Paclitaxel was efficiently loaded into PEtOz-PCL micelles using

Articles

Mechanochemical Effect of Severe Plastic Deformations: Metal Alloys, Hydrides and Molecular Solids

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