氧化钡 Barium oxide
（重定向自Calcined baryta）
氧化钡（化学式：BaO）是钡的正常氧化物，为白色固体。它可由钡在氧气中燃烧，或钡盐热分解制得：
- 2Ba + O2 → 2BaO
- BaCO3 → BaO + CO2
与水反应生成氢氧化钡：
- BaO + H2O → Ba(OH)2
Calcined baryta
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英语百科
Barium oxide 氧化钡
（重定向自Calcined baryta）
Barium oxide, BaO, is a white hygroscopic non-flammable compound. It has a cubic structure and is used in cathode ray tubes, crown glass, and catalysts. It is harmful to human skin and if swallowed in large quantity causes irritation. Excessive quantities of barium oxide may lead to death.
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