CaH2 — Properties & Data | MatWorld

CaH2

Name: CaH2
Brand: MatWorld

ceramic

· CaH2

Calcium hydride (CaH₂) is an inorganic ceramic compound and strong reducing agent commonly encountered in chemical processing and materials synthesis applications. It is primarily used as a desiccant for removing moisture from organic solvents and gases, and as a reducing agent in metallurgical and chemical manufacturing where its vigorous reaction with water is exploited to generate hydrogen gas or facilitate reduction reactions. Engineers select CaH₂ for specialized applications requiring potent drying or reducing capability in anhydrous environments, though its highly reactive nature and moisture sensitivity require careful handling and containment protocols.

desiccant for solvent purificationhydrogen generationmetallurgical reducing agentchemical synthesislaboratory reagentanhydrous processing

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	7,782.7	ksi	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2400	-	DFT · OptB88vdW
Shear Modulus(G)	4,883.4	ksi	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

Property	Value	Unit	Conditions	Source
Density(ρ)	0.07590	lb/in³	DFT · OptB88vdW

Verified Unverified Low confidence (<80%) Link to source

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Method

Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	3.302	eV	DFT · OptB88vdW
↳	4.507	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)2 entries	56.60	-	DFT · OptB88vdW
↳	11.58	-	DFT · PBE
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	4.385	-	DFT · OptB88vdW
↳	3.369	-	DFT · TBmBJ
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Electron Effective Mass(m*e)	1.267	me	DFT · OptB88vdW · 27°C
Hole Effective Mass(m*h)	1.763	me	DFT · OptB88vdW · 27°C
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.00244	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.00161	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-334.7	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	335.4	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	0.000	%	DFT · TBmBJ

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

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Method

Property	Value	Unit	Conditions
Energy Above Hull(ΔEhull)	0.06240	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)2 entries	-0.6233	eV/atom	DFT · OptB88vdW
↳	-0.6000	eV/atom	Measured

N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form, heat treatment, basis, or test environment.

Verified Unverified Low confidence (<80%) Link to source

Reference data from cited sources. Not verified or certified by MatWorld Inc. Verify against the source before use in design. Terms: engineering data

Regulatory Screening

Environmental

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.

CaH2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental