|
Atomistry » Thorium » Chemical Properties » Thorium Superoxide | ||
Atomistry » Thorium » Chemical Properties » Thorium Superoxide » |
Thorium Superoxide, Th2O7
Thorium Superoxide, Th2O7, is obtained in a hydrated form when ammonia is added to a mixture of thorium acetate or sulphate solution and hydrogen peroxide. This superoxide is rather unstable and easily loses some oxygen, so passing into more stable trioxide, ThO3. By the action of dilute sulphuric acid on the superoxide, Th2O7, hydrogen peroxide is formed in solution, whilst concentrated sulphuric acid yields ozonised oxygen. The superoxide Th2O7 is formed by the action of hypochlorite as well as hydrogen peroxide on Th(OH)4, and also by the electrolysis of an alkaline solution of sodium chloride in which thorium hydroxide, Th(OH)4, is suspended. It is therefore regarded by Pissarjewski as a true superoxide, and not merely an addition compound of Th(OH)4 and H2O2. Its formation from the nitrate is therefore thus represented:
Th(NO3)4 + 4HO2H = Th(O2H)4 + 4HNO3, Th(O2H)4 being a salt of hydrogen peroxide, which is subsequently hydrolysed to Th(O2H)2(OH)2 and Th(O2H)(OH)3, a mixture of which constitutes Th2O7. |
Last articlesTb in 6TVYSi in 6Y7O Rh in 6WRM Rh in 6WRL Ni in 6Y8Z Ni in 6Y8Y Na in 6ZXZ Na in 7ACG Na in 6YLS Na in 6Y8Z |
© Copyright 2008-2020 by atomistry.com | ||
Home | Site Map | Copyright | Contact us | Privacy |