Iron Oxide Brown 686

Fe2O3 or Fe3O4 (%) ≥88
Oil absorption (ml/100g) 20-30
Res.on325 mesh (%) ≤0.4
Water sol.Salts (%) ≤0.5
Moisture ≤1.0
PH value 4-7
Tamped apparent density (g/cm3)
0.8-1.2
Particle shape irregular
Compared with std. ≤1
Tinting strength 95-105