Iron oxide red: 110, 101, 120, 130, 140, 160, 180, 190 Fe2o3 : > 96% Oil absorption: 15-25ml/100g Res. On 325 mesh: < 0.3% Water sol. Salts: < 0.3% Moisture: < 1.0% Ph: 3-7 Tamped apparent density(g/cm3): 0.7-1.1 Particle shape: spherical Delta E (Compared with std.): < 1 Tinting strength: 95-105% -
