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21170

Sigma-Aldrich

Calcium hydride

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

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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

Signal Word

Danger

Hazard Statements

H260,H315,H319

Hazard Classifications

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

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

监管及禁止进口产品

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’.

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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
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)
Application of mechanical activation to decomposition of toxic chlorinated organic compounds
Korolev K, et al.
Chemistry for Sustainable Development, 11, 489-496 (2003)
D.R. Burfield et al.
The Journal of Organic Chemistry, 42, 3060-3060 (1977)
Selective mechanochemical dehalogenation of chlorobenzenes over calcium hydride.
Loiselle S, et al.
Environmental Science & Technology, 31(1, 261-265 (1991)
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