Barium Hydroxide

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Related to Barium Hydroxide: barium sulphate, nitrogen oxide

barium hydroxide

[′bar·ē·əm hī′dräk‚sīd]
(inorganic chemistry)
Ba(OH)2·8H2O Colorless, monoclinic crystals, melting at 78°C; soluble in water, insoluble in acetone; used for fat saponification and fusing of silicates.

Barium Hydroxide


caustic baryta, Ba(OH)2, a base (alkali). Under ordinary conditions it exists in the form Ba(OH)2-8H20—colorless crystals with a density of 2.18 g/cm3. At 78° C it melts in its own water of crystallization. It is readily soluble in water (3.5g BaO in 100 g H20 at 20° C). The aqueous solution has a strongly alkaline reaction. The saturated aqueous solution of barium hydroxide at ordinary temperatures is called baryta water; upon contact of this solution with air, it absorbs CO2 and becomes turbid owing to the precipitation of barium carbonate. Barium hydroxide is a sensitive reagent for carbonate and sulfate ions. It initiates polymerization reactions and is also used in the production of sugar.

References in periodicals archive ?
1 M barium hydroxide and hydrogen peroxide at pH 7, temperature 25oC without stirring, without washing.
Moneuse Carole, Cassir Michel, Piolet Colette and Devynck Jacques, Oxidative Coupling of Methane in Molten Barium Hydroxide at 800degC, J.