used for the producing of chrome oxides, yellow pigment, surfacepassivation of steel, welding rods, maches,  chemicalreagents; used as an oxidant.

contet(K2Cr2O7)%      >=99.7(Industry standard); >=99.8(Inner standard)

SO4%                          <=0.02(Industry standard);<=0.01(inner standard)

Cl%                             <=0.05(industrystandard); <=0.02(inner standard)

Na%                           <=0.5(industrystandard); <=0.3(inner standard)