Hydroxide

Hydroxide is a diatomic anion with chemical formula OH−. It consists of an oxygen and a hydrogen atom held together by a covalent bond, and carrying a negative electric charge. It is an important but usually minor constituent of water. It functions as a base, as a ligand, a nucleophile, and a catalyst . The hydroxide ion form salts, some of which dissociate in aqueous solution, liberating solvated hydroxide ions. Sodium hydroxide is a multi-million-ton per annum commodity chemical. A hydroxide group attached to a strongly electropositive center may itself dissociate, liberating a hydrogen cation (H+), making the parent compound an acid.

In organic chemistry, the hydroxide ion can act as a catalyst or as a nucleophilic reagent. An OH group, known as an hydroxyl group, is present in alcohols, phenols, carboxylic acids and related functional groups.

Read more about HydroxideHydroxide Ion, Applications, Basic Salts Containing Hydroxide, Structural Chemistry

Other articles related to "hydroxide, hydroxides":

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 Lithium hydroxide (LiOH) Sodium hydroxide (NaOH) Potassium hydroxide (KOH) Rubidium hydroxide (RbOH) Caesium hydroxide (CsOH) "A strong base completely ionizes in aqueous ... Sodium hydroxide is an example of a strong base ...
Cobalt(II) Hydroxide
... Cobalt(II) hydroxide or cobaltous hydroxide is the chemical compound composed of cobalt and the hydroxide ion with the formula Co(OH)2 ...
Cobalt(II) Hydroxide - Reactions
... Cobalt(II) hydroxide is precipitated when an alkaline hydroxide is added to an aqueous solution of Co2+ ions CoCl2 (aq) + 2 NaOH → Co(OH)2 (s) + 2 NaCl Cobalt(II) hydroxide decomposes to cobalt(I ... Like iron(II) hydroxide, cobalt(II) hydroxide is primarily a basic hydroxide, although it does form the weakly acidic reddish hexaaquacobalt(II) ion, 2+, in acidic aqueous solutions ... In strong bases, cobalt(II) hydroxide accepts additional hydroxide ions to form dark blue cobaltates(II) 2- and 4- ...
Stability Constants Of Complexes - Theory - Hydrolysis Products
... reaction is one in which a substrate reacts with water, splitting a water molecule into hydroxide and hydrogen ions ... In this case the hydroxide ion then forms a complex with the substrate ... M + OH M(OH) In water the concentration of hydroxide is related to the concentration of hydrogen ions by the self-ionization constant, Kw ...