Model: Iron oxide red 129
Fe2O3 content:≥75%(m/m)
Moisture: ≤1.0%
Soluble matter in water:≤ 2.5%(m/m)
Residue after sifting (45 um meshes):≤0.5%
PH in extract water : 5-7
Oil absorption : 14-20g/100g
Colour(compared with standard): Approximate 1um