barium hydroxide
barium hydroxide
| Noun | 1. | barium hydroxide - white poisonous crystals; made by dissolving barium oxide in water |
| 单词 | barium hydroxide | |||
| 释义 | barium hydroxidebarium hydroxide
Barium Hydroxidebarium hydroxide[′bar·ē·əm hī′dräk‚sīd]Barium Hydroxidecaustic 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. barium hydroxidebar·i·um hy·drox·ideSee also: absorbent (3). barium hydroxide
Words related to barium hydroxide
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