... .F.G.Cr2O3 %≥99.0099.00Cr2O3≥99ColourTo be similar or based on user‘s needsFe2O3<0.030Colouring Power %≥95.0095.00P<0 ... , as coloring agent of chrome carbide, enamel, glass, artificial leather and building materials, as organic synthetic catalyst .3) In making of ... , special printing ink for paper money, making of polishing ointment and abrasive, etc.4) In making chrome metal, etc. pigment oxide ...