... Fe3O4 Color Index: Pigment Black 11 CAS No.: 1317-61-9 Iron Oxide Black Chemical Formula: Fe3O4Color Index: Pigment Black 11CAS No ... , terrazzo. 3. Raw material of the chemical product contain iron such as oil paint, concoctive paint. PRODUCTTYPEIRON OXIDE BLACK C ... Formula: Fe3O4 or Fe2O3·FeO As an important inorganic colorant, iron oxide black is characterized high opacity, strong tinting strength, ...