Copper Oxide CuO: 99% (Min) 100g R7390

Copper Oxide

Copper Oxide CuO: 99% (Min)

Copper Cu: 79% (Min)

It is in powder form.

Turquoise in Ceramics...

• Add 3% - 5% Copper Oxide into ceramic glaze. Dip your ceramic biscuit products into the glaze or apply with a brush.
• You will obtain a turquoise color.
• It is one of the oldest coloring oxides.
• Copper Oxide (CuO) is found in both monovalent (Copper-I) and divalent (Copper-II) compounds.
• In copper-reactive glazes, CuO creates a red color, known as ox blood. In oxidizing firing atmospheres, it produces turquoise blue and green tones.
• When mixed with cobalt in different proportions, it provides bluish-green tones used in majolica glazes.
• When combined with uranium and iron, it produces yellowish-greens and foamy greens.
• In boron-based glazes, it gives a turquoise color.
• When used with titanium, it creates blue-green tones.
• In lithium-rich glazes, copper and its compounds produce blue-colored glazes.
• With a small amount of tin (SnO₂) in reducing atmospheres, copper red can be achieved.
• In lead glazes, this oxide produces green tones, while in alkaline glazes, it results in blue hues.
• In a reducing atmosphere (below 1000°C), a small amount of copper, zinc, and iron oxide can create Chinese red.
• Copper-based glazes are highly sensitive to temperature variations, leading to red, green, and black color formations.
• Additionally, when subjected to decorative firing, the gloss fades, giving a metallic appearance.
• This happens because, in a reducing atmosphere, the oxygen (O₂) inside the kiln at 800°C combines with a carbon (C) compound, transforming into carbon dioxide (CO₂), creating a reducing atmosphere instead of an oxidizing one.
• Using gold decorations on glaze pieces with high copper content can present challenges, such as gold sinking below the glaze or becoming invisible.
• Common copper compounds include Copper Chloride (CuCl), Copper Sulfate (CuSO₄·5H₂O), Copper Sulfide (CuS), and Copper Titanate (CuO, TiO₂).

Warnings:

• This product does not comply with food safety standards.
• Not intended for human consumption.
• Avoid direct or indirect contact with food products.
• Using this product in food production processes can pose serious health risks.