Product description 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