AskDefine | Define hydroxyl

Dictionary Definition

hydroxyl n : the monovalent group -OH in such compounds as bases and some acids and alcohols [syn: hydroxyl group, hydroxyl radical]

User Contributed Dictionary

English

Noun

hydroxyl
  1. A univalent radical or functional group, (-OH), in organic chemistry; present in alcohols, phenols, carboxylic acids and certain other classes of compounds

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Translations

Extensive Definition

This article is about the hydroxyl functional group. For the Hydroxyl radical see Hydroxyl radical.
Hydroxyl in chemistry stands for a molecule consisting of an oxygen atom and a hydrogen atom connected by a covalent bond. The neutral form is a hydroxyl radical and the hydroxyl anion is called a hydroxide. When the oxygen atom is linked to a larger molecule the hydroxyl group is a functional group (HO¯ or ¯OH) .

Hydroxyl group

The term hydroxyl group is used to describe the functional group –OH when it is a substituent in an organic compound. Organic molecules containing a hydroxyl group are known as alcohols (the simplest of which have the formula CnH2n+1–OH).

Hydroxyl radical

The hydroxyl radical, ·OH, is the neutral form of the hydroxide ion. Hydroxyl radicals are highly reactive and, as a consequence, short-lived; however, they form an important part of radical chemistry.
hydroxyl in Arabic: هيدروكسيل
hydroxyl in Catalan: Grup hidroxil
hydroxyl in Czech: Hydroxyl
hydroxyl in German: Hydroxylgruppe
hydroxyl in Spanish: Grupo hidroxilo
hydroxyl in Esperanto: Hidroksila grupo
hydroxyl in French: Groupement hydroxyle
hydroxyl in Indonesian: Hidroksil
hydroxyl in Icelandic: Hýdroxýl
hydroxyl in Italian: Ione idrossido
hydroxyl in Dutch: Hydroxylgroep
hydroxyl in Japanese: ヒドロキシ基
hydroxyl in Polish: Grupa hydroksylowa
hydroxyl in Portuguese: Hidroxila
hydroxyl in Russian: Гидроксильная группа
hydroxyl in Finnish: Hydroksyyli
hydroxyl in Swedish: Hydroxylgrupp
hydroxyl in Thai: ไฮดรอกซิล
hydroxyl in Turkish: Hidroksil
hydroxyl in Vietnamese: Hiđrôxyl
hydroxyl in Ukrainian: Гідроксил
hydroxyl in Chinese: 羟基
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