... 600 meshes%: 0.30% MaxResidue on 325 meshes%:0.20Max Pigment GradeMetallurgical GradeIndex NameIndexIndex NameIndexE.G.F.G.Cr2O3 %≥99.0099 ... of porcelain products, making of polishing material, super paint pigment, etc.2) In smelting of metal chrome, as coloring agent of chrome ... paper money, making of polishing ointment and abrasive, etc.4) In making chrome metal, etc. pigment oxide chrome green