Barium Peroxide Pertitanate, BaO₂.TiO₃.5H₂O

Barium Pertitanate, or Barium Peroxide Pertitanate, BaO₂.TiO₃.5H₂O, is obtained by the action of sodium pertitanate, Na₂O₂.TiO₃, on barium chloride. It forms a voluminous yellow precipitate which may be dried over sulphuric acid. Hydrogen peroxide is liberated from it by dilute sulphuric acid, indicating the presence of the barium peroxide structure, and with hydrochloric acid chlorine is evolved.