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Nitric oxide




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Nitric oxide is a chemical compound. It contains nitrogen in its +2 oxidation state. It has the chemical formula NO. It contains nitrogen and oxide ions.

Properties

It is a colorless gas. It is easily oxidized to nitrogen dioxide by air. It can react with a mixture of air and water to make nitrous acid. It glows when reacted with ozone.

Preparation

It is made by reacting ammonia with oxygen with a catalyst. It is also made in lightning. It can be made in small amounts by reacting copper with nitric acid. It can also be made by reducing nitrous acid with compounds such as iron(II) sulfate.

Uses

It is used in making nitric acid from ammonia. The ammonia is reacted with air to make nitric oxide. The nitric oxide is oxidized to nitrogen dioxide by air. The nitrogen dioxide is dissolved in water to make nitric acid and more nitric oxide.

It is also used as a stimulant in the human body. It has many actions in the human body that are being studied.

Safety

Nitric oxide is toxic when breathed in. It also easily is oxidized to nitrogen dioxide, a toxic brown choking substance.

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