Product Name: Iron Oxide Green Model: GR-369 Relative Tinting Strength: 100±5% Iron Content in Fe2O3: 86% 105? Volatiles :1.0% Water Solubility:0.5% Residue on Sieve(63 um mesh) :0.5% Water Suspension PH Value :3.5-7.0 Oil Absorption: 25-35(g/100g) Color ?E: 1.0 Usage: paint, ink, water coating, color asphalt, color brick, color tile, antique building, papermaking, pottery, rubber and plastic industry.