Sciencemadness Discussion Board

Synthesis of BaO2 from Ba(NO3)2

mewrox99 - 8-6-2010 at 23:16

Hi.

Is it possible to make Barium Peroxide from Barium Nitrate.

I can make Barium Oxide by the Barium Nitrate to decomposition.

The question is how do I make Barium Peroxide from Barium Oxide. I have 3% H2O2, but can get some 30% if needed.

Thanks.

not_important - 9-6-2010 at 19:50

For anhydrous BaO2 you want the first half of the Brin process, passing dry CO2-free air over BaO at 600 C and 2 bar pressure. See attachment

For the hydrated peroxide go download the book here http://www.archive.org/details/introductiontoc00dunlgoog and read page 33.



Attachment: Brin Process.pdf (460kB)
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Engager - 3-8-2010 at 18:27

Quote: Originally posted by mewrox99  
Hi.

Is it possible to make Barium Peroxide from Barium Nitrate.

I can make Barium Oxide by the Barium Nitrate to decomposition.

The question is how do I make Barium Peroxide from Barium Oxide. I have 3% H2O2, but can get some 30% if needed.

Thanks.


Hydrated peroxide can be easily produced by adding 30% hydrogen peroxide to fairly concentrated barium nitrate solution. It has low solubility in cold water (~0.1) and can be easily separated by filtration. Anhydrous peroxide may be obtained by heating - it looses 8 molecules of it's crystalline water at ~100C.