Saltpeter!

[iPaintball]

Is $25 including shipping a good price for 10 lbs. of reagent grade potassium nitrate? I'm going to make some smoke bombs for th 4th of July...

[paaiyan]

I would say that's a pretty good price. Where from?

[iPaintball]

eBay! Nice sig btw.

[paaiyan]

Ah, go figure. I wonder, do you know what to add to them to make color? I'm thinking of making some but that dull gray smoke is kind of boring.

[iPaintball]

I read how to do that somewhere, but you needed some kind of organic dye and random chemicals. I just mixed up a batch of flash powder with some strontium carbonate to give the flash a nice red color. It looks perty sweet!

[paaiyan]

Nice... I wonder what would happen if you mixed magnesium powder in with the mixture for the smoke bombs. Hmm... Sounds dangerous though. I'll try it!

[GalFisk]

You'd get pretty sparks.
Dyes can't be used with this smoke mix since it burns to hot.
Some working formulas: http://www.pyrocreations.com/smoke_compositions