8.02100

Calcium hydride

for synthesis

• Synonym(s): Calcium hydride
• Empirical Formula (Hill Notation): H₂Ca
• CAS Number: 7789-78-8
• Molecular Weight: 42.09
• MDL number: MFCD00010897
• UNSPSC Code: 12352306
• EC Index Number: 232-189-2
• NACRES: NA.22

Properties

• Quality Level: 200
• form: solid
• autoignition temp.: >300 °C
• reaction suitability: reagent type: reductant
• mp: 816 °C
• density: 1.9 g/cm³ at 20 °C
• storage temp.: 2-30°C
• InChI: 1S/Ca
• InChI key: OYPRJOBELJOOCE-UHFFFAOYSA-N

Description

Application

Calcium hydride (CaH₂) can be used as a reducing agent to synthesize metallic elements (e.g., Ti, Zr, V, Nb, U, and Th) from metal oxides via the calcium hydride reduction process at higher temperature (600–1000°C). Metallic calcium produced by thermal decomposition is the actual reducing agent in this process. CaH₂ is also used to reduce various metal hydrides to metals.

Analysis Note

Assay (by gasvolumetry): ≥ 95.0 %
Particle size: 0 -20 mm

Safety Information

• Pictograms: GHS02,GHS07
• Signal Word: Danger
• Hazard Statements: H260,H315,H319
• Precautionary Statements: P223 - P231 + P232 - P264 - P280 - P302 + P352 - P305 + P351 + P338
• 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