Knowra Barium oxide Barium oxide Barium oxide (BaO) is an ionic compound made of barium and oxygen. It is a strongly basic solid used in specialty glass and as a precursor to other barium compounds.
Barium hydroxide : An inorganic compound, Ba(OH)₂, formed when barium oxide reacts with water. Water converts BaO into this soluble alkaline hydroxide.
Optical glass : Glass formulated to control optical properties such as refractive index, dispersion, and transmission. BaO is added to some formulations to raise refractive index and improve optical performance.
Ionic bonding : Chemical bonding produced by electrostatic attraction between oppositely charged ions. BaO’s lattice consists principally of Ba²⁺ and O²⁻ ions.
Barium peroxide : A barium–oxygen compound, BaO₂, containing peroxide ions rather than oxide ions. Its formula and oxygen chemistry distinguish it from the simpler oxide BaO.
Barium carbonate : An inorganic compound, BaCO₃, that occurs as the mineral witherite and is used in ceramics and glass. Carbon dioxide reacts with BaO to form this carbonate.
Glassmaking : The manufacture of glass by melting silica with other ingredients and shaping the resulting melt. BaO serves as a glass ingredient that modifies composition and properties.
Oxide ion : The oxygen anion O²⁻, formed when an oxygen atom gains two electrons. Each formula unit pairs one oxide ion with one barium ion.
Strontium oxide : The alkaline-earth metal oxide SrO, chemically similar to barium oxide but containing strontium. It offers a close periodic-table comparison with different mass and material properties.
Barium sulfate : A highly insoluble barium compound, BaSO₄, used as a radiographic contrast agent and industrial filler. Sulfuric acid can convert BaO into this sparingly soluble salt.
Barium compounds : Chemical substances containing barium, including its oxides, carbonates, sulfates, and halides. BaO is a starting material for producing several compounds in this chemical family.
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