[kailee33]

Hi guys, new to the forum, its been many years (Decades) since studying chemistry but due to a recent branch of my work I find myself working with metal salts of the hydrophilic variety.

At the moment I am trying to produce some Bismuth Subnitrate, just a few grams. So far I have manage to produce Bismuth Nitrate by using concentrated nitric & Bismuth trioxide but struggling with the next step to transform this into its water soluble counterpart subnitrate. The web is always full of useful advice but information on this seems sparse. Any advice would be greatly appreciated.

[Borek]

Why not buy? Seems like it is rather common and not very expensive.

[kailee33]

I couldn't find a suitable local supplier selling the small amount required for a reasonable price.

I really only need 2 grams for this test, if successful I would happily buy in bulk. Having tools and equipment at my disposal I thought making my own would be the best option.

Interestingly enough I have tried hydrolysis of the bismuth nitrate at 60C, although there is still a large amount of white precipitate in the dish, I did pipette some of the clear solution and evaporated to find some white residue

[kailee33]

If the process proves to be too complex I will indeed pay the premium for the small quantity required, but without fully knowing the process then this is something I cant make a judgement call on as yet