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Sigma-Aldrich

Calcium hydride

purum p.a., ≥97.0% (gas-volumetric), powder

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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
UNSPSC Code:
12352300
PubChem Substance ID:
57647909
NACRES:
NA.21

grade

purum p.a.

Quality Level

200

assay

≥97.0% (gas-volumetric)

form

powder

reaction suitability

reagent type: reductant

mp

816 °C (lit.)

anion traces

chloride (Cl-): ≤2000 mg/kg
sulfate (SO42-): ≤100 mg/kg

cation traces

Cd: ≤0.005%
Co: ≤0.005%
Cu: ≤0.02%
Fe: ≤0.005%
K: ≤0.01%
Na: ≤0.05%
Ni: ≤0.005%
Pb: ≤0.005%
Zn: ≤0.005%

SMILES string

[Ca]

InChI

1S/Ca.2H

InChI key

FAQLAUHZSGTTLN-UHFFFAOYSA-N

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Application

Calcium hydride can be used as a reducing agent for the dechlorination of chlorinated organic compounds. It can also be used as a drying agent to dry pyridine.

Other Notes

Desiccant for aprotic solvents, e.g. benzene, dioxane, DMF and HMPT

pictograms

FlameExclamation mark
GHS02,GHS07

signalword

Danger

Hazard Classifications

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

wgk_germany

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
STBK6273
STBK1397
STBK0351
STBJ1566
STBH8971

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Desiccant efficiency in solvent drying. 3. Dipolar aprotic solvents.
D R Burfield et al.
The Journal of organic chemistry, 43(20), 3966-3968 (1978-09-01)
Juliane F Ferreira et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 189, 44-50 (2017-08-12)
A new quinoline-amide calix[4]arene 3-receptor for detection of hazardous anions and cations have been synthesized. The 3-receptor was examined for its sensing properties towards several different anions (Cr
Selective mechanochemical dehalogenation of chlorobenzenes over calcium hydride.
Loiselle S, et al.
Environmental Science & Technology, 31(1, 261-265 (1991)
D.R. Burfield et al.
The Journal of Organic Chemistry, 42, 3060-3060 (1977)
The mechanochemical self-propagating reaction between hexachlorobenzene and calcium hydride.
Mulas G, et al.
Journal of Solid State Chemistry, 129(2), 263-270 (1997)
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