Synthetic iron oxide Technical Data Grade Tamped Density (g/cm3) Moisture at 105(%) Oil Absorption (ml/100g) PH value 320 Residue on Sieve (%) Matter Soluble in water (%) Particle shape Tinting strength (%) E Compared with std. Iron oxide Fe2O3(%) Iron Oxide Red 101 0.7-1.1 1.0max 15~25 3~7 0.3max 0.3max spherical 95~105 1max 96min 110 0.7-1.1 1.0max 15~25 3~7 0.3max 0.3max spherical 95~105 1max 96min 120 0.7-1.1 1.0max 15~25 3~7 0.3max 0.3max spherical 95~105 1max 96min 130 0.7-1.1 1.0max 15~25 3~7 0.3max 0.3max spherical 95~105 1max 96min 190 0.7-1.1 1.0max 15~25 3~7 0.5max 0.5max spherical 95~105 1max 95min Iron Oxide Yellow 313 0.4-0.6 1.0max 25~35 3~7 0.3max 0.3max Acicular 95~105 1max 86min 313M 0.4-0.6 1.0max 25~35 3~7 0.3max 0.3max Acicular 95~105 1max 86min 313H 0.7-1.0 1.0max 25~35 3~7 0.3max 0.3max Acicular 95~105 1max 86min 920 0.4-0.6 1.0max 25~35 3~7 0.3max 0.3max Acicular 95~105 1max 85min 920H 0.7-1.0 1.0max 25~35 3~7 0.3max 0.3max Acicular 95~105 1max 85min Iron Oxide Black 330 0.8-1.3 1.0max 15~25 5~8 0.4max 0.5max spherical 95~105 1max 90min 750 0.8-1.2 1.0max 15~25 5~8 0.4max 0.5max spherical 95~105 1max 93min 790 0.8-1.2 1.0max 15~25 5~8 0.4max 0.5max spherical 95~105 1max 93min Iron Oxide Brown 610 0.8-1.2 1.0max 20~30 4~7 0.3max 0.5max Irregular 95~105 1max 90min 663 0.8-1.2 1.0max 15~25 4~7 0.3max 0.5max Irregular 95~105 1max 90min 686 0.7-1.1 1.0max 25~35 4~7 0.3max 0.5max Irregular 95~105 1max 90min Iron Oxide Orange 960 0.7-1.1 1.0max 20~30 4~7 0.3max 0.5max Irregular 98~102 1max 88min 2040 0.8-1.2 1.0max 20~30 4~7 0.4max 0.5max Irregular 98~102 1max 88min Compound Ferric Green 835     25~35         98~102 1max   5605     25~35         98~102 1max   Chrome Oxide Green GX 1.0~1.3 0.3 10~25 5~8 0.3 0.3 spherical 95~105 1max 99min Cr2O3