Properties: Colored powder. Its quality is stable with fine decentralization, strong tinting strength.   Specifications: Item Iron Oxide Red 130 Iron oxide Red 190 Iron oxide Brown 610 Iron Oxide Black 780 Iron oxide Yellow 313 Iron Oxide Blue Fe2O3/Fe3O4% 96 95 92 93 86 105C Moisture % 1 1 1 1 1 1 Water soluble salts % 0.3 0.3 0.5 0.5 0.3 0.5 Residue on 45um % 0.2 0.2 0.3 0.3 0.3 0.3 PH-value 3.5-8 3.5-8 40275 40306 3.5-7 Oil absorption 15-25 15-25 20-30 40537 25-35 Tinting strength % 95-105 95-105 95-105 95-105 95-105 95-105 Density approx / cm3 5.0-5.1 5.0-5.1 4.8 4.5-5.0 4.0-4.3   Applications:  It is widely used for color in construction, paint, coating, ink, abrasive, paper rubber & plastic.   Packing:  25 kgs in net bag  21-23mts/20'FCL (Iron Oxide Red),    13mts / 20'FCL (Iron Oxide Yellow).  21mts / 20'FCL (Iron Oxide Green).  21mts / 20'FCL (Iron Oxide Blue).