What is iron oxide used for? What is difference between iron (III) oxide and Iron (II,III)? How do you use oxides in ceramics? What is iron oxide used for

Fe₂O₃

Iron oxide (Fe2O3) is also used as a pigment, under the name "Pigment Red 101". It is approved by the US Food and Drug Administration (FDA) for use in cosmetics. Iron oxides are used as pigments in dental composites alongside titanium oxides. Hematite is the characteristic component of the Swedish paint color "Falu red".

A very fine powder of ferric oxide is known as "jeweler's rouge", "red rouge", or simply rouge. It's also called iron iii oxide and It is used to put the final polish on metallic jewelry and lenses, and historically as a cosmetic.

All pigments for ceramics including iron oxide pigments are intermixable so why not get creative and experiment by missing your own completely fresh color. During the firing process, the colors fuse extra vigorously creating purity, intensity, and brilliance. The colors are stronger, therefore, significantly less percentage is needed to create vivid colors making them excessively cost-effective.

How to use Iron Oxide Pigment in the pottery?

Iron Oxide Minium is a lovely, understated red color that is also an excellent base for painting on metal surfaces.
The fish scale-like structure of the Spanish pigment, hematite in combination with Purified Linseed Oil, a natural rust inhibitor, creates an incredible protective coating for metal applications.
Use Iron Oxide Minium as a "primer" coat before you paint with your desired Ottosson Linseed Oil Paint color or use as is. Mixed with White Titanium Zinc, some lovely lighter colors can be created.

When using ceramic pigments in glazes, usually in concentrations of 1–10%, a little more care must be taken because some pigment systems react with materials in a glaze.