email & msn : yuyuehong88@hotmail.com iron oxide brown type: 842//7602//7601 fe2o3: ≥80//≥90//≥90 fe3o4: -- oil absorption (%): 15-25 residue on bolted (%): ≤0.4 water soluble: ≤0.8 moisture (%): ≤1.5 ph-value: 4-7 density: 0.8-1.3 particle shape: in-regular color difference vs standard: ≤1 tinting strength (%): 95-105 description: character: 1.brown powder, strong tinting and covering 2.lightfastness and alkali resistant 3.dvided into red-brown, black-brown, yellow-brown application: coating, tinting of the building and rubber and plastic