CaO2 — Properties & Data | MatWorld

CaO2

ceramic

· CaO2

Calcium peroxide (CaO₂) is an inorganic ceramic compound belonging to the peroxide family, characterized by its layered crystal structure and moderate elastic stiffness. It is primarily used in environmental remediation, water treatment, and soil stabilization applications where it acts as an oxygen source and oxidizing agent, particularly in bioremediation of contaminated groundwater and sediments. CaO₂ is also explored in healthcare contexts (wound dressing, dental applications) and as a bleaching agent in industrial processes; engineers select it over alternatives like hydrogen peroxide or permanganate when sustained, controlled oxygen release and chemical stability in solid form are required.

groundwater remediationsoil stabilization and bioremediationwater treatment oxidationmedical and dental applicationsindustrial bleaching agentsoxygen-release systems

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Bulk Modulus(K)	13,681.4	ksi	DFT · OptB88vdW
Exfoliation Energy(Eexf)	144.4	meV/atom	DFT · OptB88vdW
Poisson's Ratio(ν)	0.2300	-	DFT · OptB88vdW
Shear Modulus(G)	8,534	ksi	DFT · OptB88vdW

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

Property	Value	Unit	Conditions	Source
Density(ρ)	0.1185	lb/in³	DFT · OptB88vdW

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

Filter by

Method

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	2.020	eV	DFT · OptB88vdW
↳	3.710	eV	DFT · TBmBJ
Dielectric Constant (Relative Permittivity)(εr)2 entries	29.04	-	DFT · OptB88vdW
↳	19.63	-	DFT · PBE
High-Frequency Dielectric Constant (ε∞)(ε∞)2 entries	3.565	-	DFT · OptB88vdW
↳	2.873	-	DFT · TBmBJ
Electronic Dielectric Tensor(ε∞)	Matrix (redacted)	-	DFT · PBE
Total Dielectric Tensor(ε)	Matrix (redacted)	-	DFT · PBE
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Piezoelectric Modulus(eij)	0.000	C/m²	DFT · OptB88vdW
Spectroscopic Limited Maximum Efficiency (SLME)(SLME)	0.5300	%	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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Property	Value	Unit	Conditions	Source
Energy Above Hull(ΔEhull)	0.05580	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-2.144	eV/atom	DFT · OptB88vdW

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.

CaO2

Mechanical Properties

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental