Red Iron Oxide (Pottery Colourant)

Colourants can be added to glazes to get the desired coloured effects. Unlike stains, colourants react differently in each firing. A wide spectrum of colours can be achieved by mixing them with other colourants, opacifiers & stains.

Name: Iron Oxide (Fe₂O3)

Appearance Colour: Brick Red

Form: Powder

Recommended Usage:

• In Slips: 0.5%-8%
• In Glazes: <15%

Output Colour: Varied

Stability: Relatively stable when compared to yellow iron oxide.

Additional Information: Red Iron Oxide (Fe2O3) is the normal state of iron oxide. It is the most oxidized form, and when it is reduced, it is reduced to black iron oxide. As a glaze component, it can create varied effects depending on the conditions. In general the following occurs with iron oxide:

• oxidation firings produce red iron oxide
• reduction firings produce black iron oxide

Caution: In its powdered form, red iron oxide can cause skin, eye irritation and sensitization, and is very harmful if inhaled. Please use protective coverings when handling this chemical.

Note: Owing to the nature of ceramic making process and the varied combinations of elements, we request the user to always test their formulations before bulk production/purchase. It is for the user to satisfy that the product meets their requirements.