hydroxide

[ hahy-drok-sahyd, -sid ]

Phonetic (Standard)IPA

noun

hydroxide

/ haɪˈdrɒksaɪd /

hydroxide

/ hī-drŏk′sīd′ /

A chemical compound containing one or more hydroxyl radicals (OH). Inorganic hydroxides include hydroxides of metals, some of which, like sodium hydroxide (caustic soda) and calcium hydroxide, are strong bases that are important industrial alkalis. Some metal hydroxides, such as those of zinc and lead, are amphoteric (they act like both acids and bases). Organic hydroxides include the alcohols.

First recorded in 1820–30; hydr- ² + oxide

An alcoholic solution of the resin was just neutralized with potassium hydroxide.

Boiling with an excess of potassium hydroxide gave a black substance (tauromelanic acid).

A portion was gently warmed with a few drops of a strong solution of potassium cyanide and two drops of sodium hydroxide.

A portion of the water solution was heated with glucose and a few drops of sodium hydroxide.

By warming with alkalies or barium hydroxide, rhamnose is colored yellow.

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