This color contains the following pigments:
Al2O3 + Cr2O3 + ZnO2
A variant on Cerulean Blue PB36 that is slightly less bright and slightly more greenish.
Cobalt salts have excellent lightfastness and temperature stability.
Cobalt salts are toxic when ingested or inhaled, and slightly toxic on contact with the skin. Evidence of Chromium(III) carcinogenicity is inconclusive. Chromium(III) salts appear in greenish pigments. Chromium(VI) salts, which appear in yellowish pigment