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Sodium (Na) is a necessary element (used in ionic form) for the maintanence of the lives of a number of animals and plants. It is what makes the oceans salty.

Sodium is used to improve the structure of certain alloys, to descale metal, and to purify molten metals.

An alloy of sodium with potassium, NaK, is also an important heat transfer agent.

A sodium and chlorine(Cl) compound is also used as a common seasoning (NaCl, or table salt).

Metallic sodium is is also used in the manufacture of esters and in the preparation of organic compounds.

A link to the Wikipedia article on sodium is provided.

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15y ago

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