CaCrO4

ceramic
· JVASP-11813· CaCrO4

Calcium chromate (CaCrO4) is an inorganic ceramic compound composed of calcium and chromate ions, belonging to the family of metal chromate ceramics. It is primarily used as a corrosion inhibitor pigment in protective coatings, primers, and rust-preventive paints for steel and aluminum substrates in aerospace, automotive, and infrastructure applications. The material is valued for its ability to passivate metal surfaces and provide long-term corrosion protection, though its use has declined in some regions due to environmental and health regulations concerning hexavalent chromium compounds; engineers often evaluate it against alternative inhibitor pigments such as zinc phosphate or strontium aluminum polyphosphate when regulatory compliance is a concern.

corrosion inhibitor pigmentsprotective coatings and primersaerospace structural coatingsautomotive anti-corrosion applicationsmetal surface passivationmarine and infrastructure protection

Compliance & Regulations

?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Bulk Modulus(K)
80.16
GPa—
Poisson's Ratio(ν)
0.3300
-—
Shear Modulus(G)
38.87
GPa—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Density(ρ)
3.119
kg/m³—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Band Gap(Eg)
2.161
eV—
Magnetic Moment(μB)
0.000
µB—
Seebeck Coefficient(S)
-241
µV/K—
Verified Unverified Low confidence (<80%) Link to source
PropertyValueUnitConditionsSource
Energy Above Hull(ΔEhull)
0.000
eV/atom—
Formation Energy(ΔHf)
-2.575
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.