What is "cr2o3"

Chrome \Chrome\, n. Same as Chromium. Chrome alum (Chem.), a dark violet substance, (SO4)3Cr2.K2SO4.24H2O, analogous to, and crystallizing like, common alum. It is regarded as a double sulphate of chromium and potassium. Chrome green

1. The green oxide of chromium, Cr2O3, used in enamel painting, and glass staining.

2. A pigment made by mixing chrome yellow with Prussian blue.

   Chrome red, a beautiful red pigment originally prepared from the basic chromate of lead, but now made from red oxide of lead.

   Chrome yellow, a brilliant yellow pigment, PbCrO4, used by painters.