dichromate

noun

1. Chemistry. a salt of the hypothetical acid H2Cr2O7, as potassium dichromate, K2Cr2O7.

noun

1. any salt or ester of dichromic acid. Dichromate salts contain the ion Cr 2 O 7 2–Also called: bichromate

n.

1. A compound containing the divalent negative ion, Cr2O7, usually having a characteristic orange-red color.bichromate