Beryllium Oxide

Beryllium oxide is oxide of beryllium metal, which is highly toxic.  It is white loose powder of B4 type crystal. The pure BeO is insulating to electricity, but conduct heat like metals. BeO slowly dissolve in concentrated acid and hydroxide alkaline solution, hardly dissolve in water. After firing it is hardly soluble in above solutions, which is very hard and own ceramic character. Beryllium(II) oxide has two characters, which can react with acid, also with strong base. It is very stable, but if heating with ammonium hydrogen fluoride or sulfuric acid, it decompose easily. Fresh beryllium monoxide tend to react with acid, alkali and ammonium carbonate to form beryllium salt or beryllium acid salts. Beryllium hydroxide is the raw material.