We can supply iron oxide red for our customers,and the main products range: 100 ... 120, 125 ,140,160 ,190and so on Synthetic red iron oxide from Tongchem are high quality inorganic pigments suitable for a ... , UV stable, alkali resistant and excellent chemical resistant. Typical properties PropertiesUnitSpecificationTest methodPartFe2O3 Content%≥96ISO12488Moisture at 105%≤1.0ISO7872Water soluble salts ...