... 25kg / Bag 4.20MT / 20'FCL 5.Iron Oxide Red Iron Oxide Red 190 CAS No: 1309-37-1 Molecular Formula: Fe2O3 ... Formula: Fe2O3·αH2O As an important inorganic colorant, iron oxide red is characterized high opacity, strong tinting strength, easy dispersibility, ... and perfect weather resistance. It is extensively used in concrete, roofing tile, paver, stucco, masonary, paint, coating, rubber, plastic, paper ...