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Sodium periodate is a chemical compound. Its chemical formula can be NaIO4 (sodium metaperiodate) or Na5IO6 (sodium orthoiodate). It has sodium and periodate ions in it.
Sodium periodate is a colorless solid. It reacts with acids to make periodic acid. It breaks down when heated to make sodium iodate and oxygen gas. It is a strong oxidizing agent.
It can be made by oxidation of sodium iodide with sodium hypochlorite in a nitric acid solution.
Sodium periodate can oxidize cellulose. It is also used as a biodegradable chemical in the human body. It is also used in organic chemistry reactions.