... , the steel products deactivation Grade 1Grade 2Grade 3Potassium Dichromate (K2Cr2O7)%>=99.799.599.0Water-Insoluble Material %<=0.0500.0500.080Chloride (CI ... , thesystem welding rod matches, serves as the oxidant, the systemChromium potassium alum as well as uses in to make the chemical reagent ... inside lining plasticbag packing, each bag of net weights 50kg Potassium Dichromate