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Merck

497355

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:
7789-78-8
Molecular Weight:
42.09
EC Number:
232-189-2
MDL number:
MFCD00010897
NACRES:
NA.23
PubChem Substance ID:
24873111
UNSPSC Code:
26111700
Assay:
99.99% trace metals basis
Form:
powder

Key Documents

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Product Name

Calcium hydride, powder, 99.99% trace metals basis

InChI key

FAQLAUHZSGTTLN-UHFFFAOYSA-N

InChI

1S/Ca.2H

SMILES string

[Ca]

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

, Enabling

Quality Level

100

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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.

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.
We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for energy efficiency. Find details here.

pictograms

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GHS02,GHS07

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Danger

Hazard Classifications

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

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

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Certificates of Analysis (COA)

Lot/Batch Number
0000325829
0000390434
0000325829
0000118325
0000104698

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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)
Development of hydrogen storage for fuel cell generators II: utilization of calcium hydride and lithium hydride.
Kong VCY, et al.
International Journal of Hydrogen Energy, 28(2), 205-214 (2003)
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)
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