11 replies to this topic

[pyroman89]

I was just wondering if It can be done and how? I'am assuming I would need a nitrate the only ones I have would be: KnO3, NH4NO3, and a little NaNO3. I also have the strontium chloride. Any help or tips would be great.

Thanks.

[bengal_pyro]

The problem is whatever double decomposition reaction u 'll use a metal chloride will be produced. And generally all metal chlorides are highly soluble in water. So it'll be difficult to separate. I would suggest precipitate the strontium as strontium carbonate, by using potassium carbonate say. Then dissolve the strontium carbonate in dilute nitric acid, finally evaporate evaporate the solution to get the crystals of Sr(NO3)2

Edited by bengal_pyro, 07 December 2007 - 03:17 AM.

[YT2095]

Agreed, that would be the route I would take also (and have done in the past).

[pyroman89]

okay thanks. I think all I need would be the nitric acid, I think I have the potassium carbonate. I had one more question, but I forgot it. When I remember it I will edit this post.

[Bonny]

Why not just buy the strontium carbonate and skip a step? It is cheap and easy to find from ceramic/pottery suppliers I think the nitric acid will be the hardest thing to get. If you can't find any nitric it is possible to make strontium nitrate from strontium carbonate and ammonium nitrate. There is a thread on here about that. It is a pain and not worthwhile IMO, but a possible method.

[pyroman89]

Well I said strontium chloride because I have it. I think I will read that thread, because I have the ammonium nitrate. Just need the strontium carbonate.

[MDH]

I think you should stick with carbonates. Not only can this be made quickly from carbonates, you won't have useless chloride left over.

[pyroman89]

Yeah I plan on using carbonate now. Just need the Sr carbonate, looks like I need to call some pottery stores.

Thanks for all the help.

[chris17]

I should probably do some more reading on the subject, but as I have 2 l of 70% nitric, I could try to follow the procedure of converting carbonate into nittate. Will higher acid concentrations give better yields, and in what ratios should the nitric acid and carbonate be mixed?

[Bonny]

I should probably do some more reading on the subject, but as I have 2 l of 70% nitric, I could try to follow the procedure of converting carbonate into nittate. Will higher acid concentrations give better yields, and in what ratios should the nitric acid and carbonate be mixed?

Before doing this, you should do enough reading to be able to calculate all the ratios needed. I was told (somewhere) to use 25% nitric acid. Remember when diluting the nitric to always add acid to water. Be sure you have all the proper safety equipment too. The thread on barium carbonate to barium nitrate here will be very helpful.

[hashashan]

you can react it either with silver nitrate(expensive)
or lead nitrate(toxic )

[Mumbles]

I don't know if I would go as far as to call strontium chloride useless. It would be my salt of choice for liquid colored fireballs. There is a way to convert to the nitrate directly via ammonium nitrate, but it won't yield a very pure product without a rather significant amount of work up.

I'd save the chloride, and purchase some carbonate elsewhere. It is quite cheap, and generally relatively pure.