What is Barium oxide?
'''Barium oxide''' is a [[chemical compound]]. Its chemical formula is BaO. It contains [[barium]] and [[oxide]] [[ion]]s. ==Properties== Barium oxide is a white solid. It dissolves in water to make [[barium hydroxide]]. It reacts with [[acid]]s to make barium [[salt]]s. ==Preparation== Barium oxide is made by heating [[barium carbonate]] with [[carbon]]. This prevents [[barium peroxide]] from forming when it is heated. It can also be made by heating [[barium nitrate]]. ==Uses== Barium oxide can be added to glass instead of [[lead(II) oxide]]. It is also used in [[cathode ray tube]]s. It can be used as a [[catalyst]]. ==Safety== Barium oxide is very toxic when eaten. ==Related pages== *[[Barium chloride]] *[[Barium sulfate]] [[Category:Barium compounds]] [[Category:Oxides]]