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Josh Bernbaum 10-16-2019 09:32 PM

Sodium Nitrate sourcing?
Hey, so I'm having some trouble finding sodium nitrate that's a nice powdery consistency. Only things I've seen online or at a local ceramic supply were either pelletized to about the size of small BBs, or crystalline similar to coarse table salt. I was hoping to find a powered consistency like I'd gotten years ago which I found online somewhere but can't find again. It clumped up a bit, but scraping it against a screen easily got it powdery again. Should I just buy a cheap coffee grinder and grind up the BBs? (I have one for K dichromate but that ONLY gets used for that now, def not for coffee anymore..) Or anyone know a source of some finer NaNO3 that I can order somewhere. Thanks in adv.

Eben Horton 10-16-2019 09:37 PM

Make a mortar and pestle. Blow a very thick clear bowl and drop a big gather into a teardrop... viola.

Pete VanderLaan 10-17-2019 10:57 AM

Almost alll of that stuff is Prilled at this point. I deal with that in a fairly simple way for colorants. I hit yard sales and buy their coffee grinders cheap. I put the potassium or sodium nitrate in them and grind it. It works very quickly. In small quantities Duda Energy was a good source for either of the nitrates. If you want 50 lb bags, you have a different issue and I'm not allowed to disclose my source for it. Even so, it's prilled, all of it.

Actually food blenders grind it right up too.

Josh Bernbaum 10-17-2019 11:25 AM

Thanks Eben and Pete,
I do have an old mortar and pestle I could use, but I'll keep my eyes out at yard sales for the coffee grinders too.

Pete VanderLaan 10-17-2019 12:12 PM

The mortar and pestle will drive you nuts. The food processors work the best . I would not use one on materials that are airborne toxic, but the sodium or potassium nitrates are easy.

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