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Alkali hydroxide

The alkali hydroxides are a class of chemical compounds which are composed of an alkali metal cation and the hydroxide anion (HO-). The alkali hydroxides are:

The most common alkali hydroxide is sodium hydroxide, which is readily available in most hardware stores in products such as a drain cleaners. Another common alkali hydroxide is potassium hydroxide. This is available as a solution used for cleaning terraces and other areas made out of wood.

All alkali hydroxides are corrosive, being strongly alkaline.

A typical school demonstration shows when a piece of an alkali metal is introduced to a bowl of water and a vigorous reaction begins. For example:

Sodium + water → sodium hydroxide + hydrogen gas
2 Na + 2 H2O → 2 NaOH + H2
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Alkali_hydroxide". A list of authors is available in Wikipedia.
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