Skip to Content
Merck
All Photos(3)

Documents

497355

Sigma-Aldrich

Calcium hydride

greener alternative

powder, 99.99% trace metals basis

Synonym(s):

Calcium dihydride

Sign Into View Organizational & Contract Pricing
All Photos(3)

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
UNSPSC Code:
26111700
PubChem Substance ID:
24873111
NACRES:
NA.23

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

SMILES string

[Ca]

InChI

1S/Ca.2H

InChI key

FAQLAUHZSGTTLN-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

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.

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
GHS02,GHS07

Signal Word

Danger

Hazard Statements

H260,H315,H319

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)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

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)
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)
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)
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service