... color, stable performance, alkali-resistant ability, a certain degree of stability towards weak acid and dilute acid and high performance in ... metal instruments, optical glass, stationery, leather, magnetic alloys and high-grade alloy steel.The product has good dispersity, storage stability and good ... %PH Value3.5-7Oil absorption15-25%Content: Fe2O395% min (Good Thermal stability) Iron Oxide Red 110