Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Chromates and dichromates are salts of chromic acid and dichromic acid, respectively. Chromate salts contain the chromate anion, CrO2– 4, and usually have an intense yellow color. Dichromate salts contain the dichromate anion, Cr2O2– 7, and usually have an intense orange color. The chromates and dichromates of heavy metals (such as silver and lead) often have a red color.

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