Co2O3

ceramic

· Co2O3

Co₂O₃ (cobalt sesquioxide) is an inorganic ceramic oxide compound consisting of cobalt and oxygen in a 2:3 molar ratio. This material belongs to the family of transition metal oxides and is typically studied for applications requiring magnetic, catalytic, or electrochemical properties. While less commonly specified as a primary engineering material compared to more stable cobalt oxides (such as CoO or Co₃O₄), Co₂O₃ appears primarily in research contexts for catalysis, energy storage, and functional ceramic applications where its mixed-valence cobalt state offers specific electronic or magnetic advantages.

catalytic converters and catalysisbattery and supercapacitor electrodesmagnetic ceramics and spintronic deviceschemical sensorspigments and colorantsresearch/experimental materials

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions
Band Gap(Eg)2 entries	0.000	eV	—
↳	0.000	eV	—
Magnetic Moment(μB)	-0.09100	μB	—

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

Property	Value	Unit	Conditions	Source
Formation Energy(ΔHf)	-0.3780	eV/atom	—

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

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.

Co2O3

Electrical Properties

Other Properties

Regulatory Screening

Environmental