what is yellow dichromate?

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what is yellow dichromate?

2007-12-31 01:13:26 · 2 answers · asked by Claudine A 1 in Science & Mathematics ➔ Chemistry

2 answers

Chromates and dichromates are salts of chromic acid and dichromic acid, respectively. Chromate salts contain the chromate ion, CrO42−, and have an intense yellow color. Dichromate salts contain the dichromate ion, Cr2O72−, and have an intense orange color.
http://en.wikipedia.org/wiki/Chromate

2007-12-31 03:07:43 · answer #1 · answered by Anonymous · 0⤊ 0⤋

Dichromate is orange. Are you sure you don't mean chromate? Lead chromate was at one time used as a yellow pigment under the name "chrome yellow", but not now because both components are poisonous and because its colour can be affected over time by atmospheric pollutants.

2007-12-31 09:51:07 · answer #2 · answered by Facts Matter 7 · 0⤊ 0⤋