Model: Iron oxide red G190-6
Fe2O3 content:≥96%(m/m)
Matter volatile at 105 degree : ≤0.8%(m/m)
Soluble matter in water:≤ 1.0%(m/m)
Residue after sifting (45 um meshes):≤0.5%
PH in extract water : 5-7
Oil absorption : 15-25g/100g
Colour(compared with standard): Approximate 1um