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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: *Lithium hydroxide (LiOH) *Sodium hydroxide (NaOH) *Potassium hydroxide (KOH) *Rubidium hydroxide (RbOH) *Caesium hydroxide (CsOH) "A strong base completely ionizes in aqueous solution to give HO− and a cation. Sodium hydroxide is an example of a strong base. The principal strong bases are the hydroxides of Group IA elements and group IIA elements."〔Ebbing, Darrell D & Gammon, Steven D. General Chemistry (Eighth Edition). Page 661. ISBN 0-618-39941-0〕 The most common alkali hydroxide is sodium hydroxide, which is readily available in most hardware stores in products such as a drain cleaner. 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 very corrosive, being strongly alkaline. A typical school demonstration demonstrates what happens when a piece of an alkali metal is introduced to a bowl of water. A vigorous reaction occurs, producing hydrogen gas and the specific alkali hydroxide. For example, if sodium is the alkali metal: :Sodium + water → sodium hydroxide + hydrogen gas :2 Na + 2 H2O → 2 NaOH + H2 == Notes == 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Alkali hydroxide」の詳細全文を読む スポンサード リンク
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