Sodium periodate

• Sodium metaperiodate
• Sodium

Colorless and odorless solid

Fixed

3.87 g · cm -3

~ 300 ° C ( decomposition)

Moderately in water ( 91 g · l-1 at 20 ° C)

Risk

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Sodium is a chemical compound selected from the group consisting of periodates (specifically, the sodium salt of metaperiodic acid ). It is in the form of a very reactive, oxidising, odorless and colorless powder.

Occurrence

Sodium occurs naturally in small amounts as an admixture of Chilean nitrate.

Production and representation

Sodium can be prepared from sodium iodate.

Properties

When heated above 300 ° C, sodium decomposed to sodium oxide and iodine ( or iodide in the presence of moisture ) occur.

Use

Sodium is used as a standard solution. They can also be used for the preparation of 1- pyrroline and as an oxidizing agent (for example, dihydroxylation as co-oxidant ). In bioorganic chemistry, it is used for the selective oxidation of amino-terminal serines in peptides or proteins. In this way Glyoxalfunktionen be generated. These aldehyde groups can be used with primary amines in Schiff base reactions for bioconjugation. Aldehyde can also be mediated by sodium periodate oxidation of 1,2- diols, which occur glycosylated biomolecules in sugar residues generated.

Safety

Sodium does not burn, but it can greatly promote bestehendene fires and reacts violently with combustible materials, so that it may be a spontaneous combustion on contact with such.