Copper(II) oxide facts for kids
Copper(II) oxide, also known as cupric oxide, is a common chemical compound. Its chemical formula is CuO. This means it's made of one copper atom and one oxygen atom. The copper in this compound has a special electrical charge, which chemists call an oxidation state of +2.
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What is Copper(II) Oxide Like?
Copper(II) oxide is a black solid. It can dissolve in acids, forming new copper compounds called salts. When it reacts with gases like carbon monoxide or hydrogen, it can change back into pure copper metal. It can also dissolve in very strong alkaline solutions. If you mix it with ammonia, it creates a dark blue liquid, similar to another copper compound called copper(II) hydroxide.
How is Copper(II) Oxide Made?
You can make copper(II) oxide in a few ways:
- By heating another copper compound called copper(II) hydroxide.
- By heating copper metal in the air.
- By heating other copper compounds like copper(II) carbonate or copper(II) nitrate.
What is Copper(II) Oxide Used For?
Copper(II) oxide has several interesting uses:
- Coloring Ceramics: It's used to give color to ceramics, like pottery and tiles.
- Making Thermite: It's an ingredient in thermite, a special mixture that creates a lot of heat.
- Cleaning Up Chemicals: It can react with many harmful chemicals to change them, making them less toxic.
- Health Supplements: Small amounts of copper(II) oxide are added to vitamins. This helps your body get the copper it needs to stay healthy.
- Killing Germs: It can even be added to clothing to help kill germs.
Is Copper(II) Oxide Safe?
Copper(II) oxide can be harmful if a large amount is eaten. However, it is safe in very tiny amounts, such as those found in vitamins. Your body needs a small amount of copper to work properly, and copper(II) oxide can provide this essential mineral.
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See also
In Spanish: Óxido de cobre(II) para niños
