kryss - 11-8-2003 at 14:39
Any ideas how to make BaO2 from BaCO3 / BaCL2 or BaNO3? I've read that BaO forms the peroxide at a red heat with air or oxygen if CO2 isnt
present but this seems more complicated than precipitation with H2O2 and filtering.
a123x - 11-8-2003 at 17:31
Decompose the barium nitrate into the oxide then heat like you mention. Barium carbonate I suppose could work but requires a very high temperature to
decompose. I'm not sure I understand what you mean by precipitation with H2O2. If you mean reacting a barium salt with H2O2 and having the BaO2
precipitate then it won't work. Barium peroxide reacts with water to form barium hydroxide and H2O2 which should rapidly decompose into H2O and
O2 in the high ph environment of the Ba(OH)2.
kryss - 13-8-2003 at 10:14
I've since read in an old inorganic text book that BaO takes up oxygen at 100 degrees - thats certainly a more manageable temperature - although
on reflection Ba(NO3)2 is probably as good an oxidiser as the peroxide - would need Mg ribbon anyway to act as an initiator which is the one thing i
didnt order as its quite dear!