Brown Iron Oxide INCI/CTFA: IRON OXIDES/CI 77491,77492,77499 C.I.No: CI 77491,77492,77499 C.I.Name&No: Pigment Red 101,Pigment Yellow 42,Pigment Black 11 Molecular Formula: Fe2O3 Molecular Weight: 159.69 Properties: Brown powder, no odor. Can¡¯t dissolve in water, organic acid and organic solvent, but dissolvable in thick inorganic acid; stable in light, heat, air and alkali; good dispersible ability, hiding ability and strong coloring up ability. It can obstruct ultraviolet radiation, and can¡¯t be absorbed by flesh, so it has none side effect. The relative density is 5.12-5.24g/mL according to the content. The melting point is 1550¡æ, decomposing when the temperature reach about 1560¡æ. Toxicity: ADI 0-0.5mg/kg(FAO/WHO,1985).LD5 0-15g/kg(big rat,by mouth) Use: For coloring tablets,pills,capsules Storage: Dry, not be affected with damp, high temperature. Keep insulating from acid and alkali. If the packaging is not tear open,the valid storage period is two year. Note: Contained in the Chinese and the U.S. Pharmacopoeia Specifications£º
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