IrO3 — Properties & Data | MatWorld

IrO3

ceramic

· JVASP-35217· IrO3

IrO₃ is an iridium oxide ceramic compound that belongs to the family of precious metal oxides, characterized by high chemical stability and catalytic properties. While primarily of research interest rather than established commercial production, iridium oxides are investigated for electrochemical applications, including oxygen evolution catalysis and electrodes in corrosive or high-temperature environments where conventional materials degrade. Engineers consider iridium oxides when extreme corrosion resistance, catalytic activity, or operation in harsh electrochemical conditions outweigh the cost premium of iridium-based materials.

electrochemical catalysisoxygen evolution reactionscorrosion-resistant electrodeshigh-temperature oxidizing environmentswater electrolysis research

Compliance & Regulations

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

Units:

si imperial

Property	Value	Unit	Conditions	Source
Density(ρ)	7.334	kg/m³	DFT · OptB88vdW

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Carrier

Property	Value	Unit	Conditions
Band Gap(Eg)	0.000	eV	DFT · OptB88vdW
Magnetic Moment(μB)	0.000	µB	DFT · OptB88vdW
Thermoelectric Power Factor(PF)2 entries	0.0000266	W/(m·K²)	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	0.0000291	W/(m·K²)	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C
Seebeck Coefficient(S)2 entries	-2.010	μV/K	DFT · OptB88vdW · n-type · 1e20 cm⁻³ · 327°C
↳	-2.100	μV/K	DFT · OptB88vdW · p-type · 1e20 cm⁻³ · 327°C

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)	0.3171	eV/atom	DFT · OptB88vdW
Formation Energy(ΔHf)	-0.3975	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.

IrO3

Physical Properties

Electrical Properties

Other Properties

Regulatory Screening

Environmental