Iron oxide Brown 610 Appearance: Brown powder Content: 92% Moisture: 1.0% Water-soluble Matter: 0.5% 45UM Sieve Residue: 0.3% PH Value: 4-7 Oil Absorption: 20-30 Tinting strength: 95-105% Density approx: 4.8 cm3 Contact: Knight E/M: phenixwand at hotmail.com