Item Iron Oxide Red 130 Iron oxide Red 190 Iron oxide Brown 610
Fe2O3/Fe3O4≥% 96 95 92
105°C Moisture ≤% 1.0 1.0 1.0
Water soluble salts ≤% 0.3 0.3 0.5
Residue on 45um ≤% 0.2 0.20 0.30
PH-value 3.5-8 3.5-8 4-7
Oil absorption 15-25 15-25 20-30
Tinting strength % 95-105 95-105 95-105
Density approx / cm3 5.0-5.1 5.0-5.1 4.8
Iron Oxide Black 780 Iron oxide Yellow 313 Iron Oxide Blue
Fe2O3/Fe3O4≥% 93 86
105°C Moisture ≤% 1.0 1.0 1.0
Water soluble salts ≤% 0.5 0.3 0.5
Residue on 45um ≤% 0.3 0.3 0.3
PH-value 7 5-8 3.5-7
Oil absorption 12-25 25-35
Tinting strength % 95-105 95-105 95-105
Density approx / cm3 4.5-5.0 4.0-4.3