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213268

Sigma-Aldrich

Calcium hydride

greener alternative

powder, 0-2 mm, reagent grade, ≥90% (gas-volumetric)

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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:
57647905
NACRES:
NA.21

grade

reagent grade

Quality Level

200

Assay

≥90% (gas-volumetric)

form

powder

reaction suitability

reagent type: reductant

greener alternative product characteristics

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particle size

0-2 mm

mp

816 °C (lit.)

greener alternative category

Enabling,

SMILES string

[Ca]

InChI

1S/Ca.2H

InChI key

FAQLAUHZSGTTLN-UHFFFAOYSA-N

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General description

Calcium hydride is an alkaline earth metal hydride. Its solid state reaction with hexachlorobenzene has been investigated.
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Application

Calcium hydride (CaH2) may be employed as a reducing agent in the one-pot two-step Knoevenagel condensation reaction.
It may also be used as a reagent furing metallothermic synthesis of Nb3Al.
CaH2 can be used as a hydrogen source during the synthesis of monomethylated and dimethylated amines and in a ball milling process for the dechlorination of liquid and solid chlorinated compounds.

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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

FSL

Group 3: Spontaneously combustible substances and water- reactive materials
Metal hydrides
Hazardous rank I
1st spontaneously combustible materials and water reactive materials

JAN Code

213268-VAR:
213268-5KG:
213268-BULK:
213268-1KG:
213268-500G:
213268-25KG:
213268-100G:

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Certificates of Analysis (COA)

Lot/Batch Number
STBK2463
STBK0326
STBK0304
STBJ7104
STBJ3419

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Reductive N-methylation of amines with calcium hydride and Pd/C catalyst.
Guyon C, et al.
Tetrahedron Letters (2016)
Properties of the intermetallic phase Nb3Al prepared by a calcium hydride reduction process.
Kasimtsev AV, et al.
Inorganic Materials, 51(1), 43-50 (2015)
Modification of Calcium Hydride as Solid Hydrogen Source for Fuel Cell System.
Nagashima K, et al.
International Journal of Applied Ceramic Technology, 13(2), 265-268 (2016)
Selective mechanochemical dehalogenation of chlorobenzenes over calcium hydride.
Loiselle S, et al.
Environmental Science & Technology, 31(1, 261-265 (1991)
L R Cajero-Zul et al.
Journal of biomaterials science. Polymer edition, 30(3), 163-189 (2018-12-18)
Nanocomposites of functionalized carbon nanotubes (CNTsf) as nanofillers, and a copolymer of star-shaped poly(ε-caprolactone) (stPCL) and poly(ethylene glycol) (PEG) as a polymeric matrix were synthesized, characterized, and their resistance to the growth of Staphylococcus aureus and Pseudomonas aeruginosa was evaluated.
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