Iron Oxide Red/ Yellow/ Blue/ Black/ Green Our company manufacture and export Iron Oxide. Herewtih please find our specification as follow: Re: Iron Oxide Red Y101/ 110/ 120/ 130 Appearance: Red Power Specification: Content: 96% Moisture: 1.0% PH Value: 3.5-8 Oil Absorption: 15-25 Water-soluble Matter: 0.3% 45UM Sieve Residue: 0.2% Tinting strength: 95-105% Density approx: 5.0-5.1 cm? Re: Iron Oxide Red Y190 Appearance: Red Power Specification: Content: 95% Moisture: 1.0% Water-soluble Matter: 0.3% 45UM Sieve Residue: 0.2% PH Value: 3.5-8 Oil Absorption: 15-25 Tinting strength: 95-105% Density approx: 5.0-5.1 cm? Iron oxide Brown 610 Appearance: Brown powder Specification: Content: 92% Moisture: 1.0% Water-soluble Matter: 0.5% 45UM Sieve Residue: 0.3% PH Value: 4-7 Oil Absorption: 20-30 Tinting strength: 95-105% Density approx: 4.8 cm? Iron oxide Black 780 Appearance: Black powder Specification: Content: 93% Moisture: 1.0% Water-soluble Matter: 0.5% 45UM Sieve Residue: 0.3% PH Value: 5-8 Oil Absorption: 15-25 Tinting strength: 95-105% Density approx: 4.5-5.0 cm? Re: Iron Oxide Yellow Y311/ 313 Appearance: Yellow Power Specification: Content: 86% Moisture: 1.0% Water-soluble Matter: 0.3% 45UM Sieve Residue: 0.3% PH Value: 3.5-7 Oil Absorption: 25-35 Tinting strength: 95-105% Density approx: 4.0-4.3 cm? Iron oxide blue Appearance: Blue powder Specification: Moisture: 1.0% Water-soluble Matter: 0.5% 45UM Sieve Residue: 0.3% Tinting strength: 95-105% Packing: 25 kgs in net bag, 23 mts in the 20' FCL ( Iron Oxide Red) , 13 mts/ 20' FCL ( Iron Oxide Yellow) . Uses: Construction, Coating & Paint, Ink, Rubber, Plastic, etc.