dichromate

(dī krōmāt′, dīkrō-)

adjective

a salt of dichromic acid containing the divalent, negative radical CrO

Origin: < di- + chromate

See dichromate in American Heritage Dictionary 4

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

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