[Archer]

Hi all,

I need some B₂O₃ and I found an old bottle of Bismuth oxynitrate in the cupboard which says it contains around 70-82% B₂O₃.

To avoid the £25 delivery charge for one item I need in a hurry I thought I would ask my friends who are better inorganic chemists than I (which would be most of the population of the forum ).

Is there anything simple I can do to convert it to B₂O₃ i.e. remove the nitrate.

Heating to something like 700°C apparently will work but I was looking for something I can do in a beaker and a Buchner funnel.

Thanks

Archer

[kriggy]

What about converting it to something more reactive and then heat it? Maybe dissolve with HCl and then heat the BiCl₃ till it decomposes to oxide? Its just a guess, I dont have any reference book available atm