Barium hydroxide (Ba(OH)2)-Powder

Characteristic

Barium oxide, BaO, baria, 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.

Chemical formula：BaO

Molar mass：153.326 g/mol

Appearance：white solid

Density：5.72 g/cm³, solid

Melting point：1,923 °C (3,493 °F; 2,196 K)

Boiling point：~ 2,000 °C (3,630 °F; 2,270 K)

Solubility in water： 3.48 g/100 mL (20 °C);90.8 g/100 mL (100 °C);Reacts to form Ba(OH)2

Solubility：soluble in ethanol, dilute mineral acids and alkalies; insoluble in acetone and liquid ammonia

Magnetic susceptibility (χ)：-29.1·10⁻⁶ cm3/mol

Crystal structure：cubic, cF8

Application

Barium oxide is used in cathode ray tubes, crown glass, and catalysts. It is used for the adsorption NO and NO2. It also plays an important role for NO2 storage and reduction. It acts as an efficient ethoxylation catalyst.