chromium oxide, the potassiumchromate, Chrome yellow the pigment, the steel products deactivation Grade 1Grade 2Grade 3Potassium Dichromate (K2Cr2O7)%>=99.799.599.0Water-Insoluble ... .020.05 Moisture %<=0.030Use : Mainly uses in the system chromium oxide, the potassiumchromate, Chrome yellow the pigment, the steel products ...