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Topic: KNO3  (Read 7784 times)

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straightexhaust

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KNO3
« on: March 09, 2006, 06:27:45 PM »
Ok so here the thing, i have bought KNO3 of ebay to use to make model rocket engines and smoke bombs but the price to buy it is rediculous so i was wondering if there are some products at my local hardware/grocery store that i could extract it from and how.

No im not making explosives i just am making model rocket engines just enough to lauch my model rockets


Offline pantone159

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Re:KNO3
« Reply #1 on: March 10, 2006, 12:33:10 AM »
I have found stuff labeled potassium nitrate at my local grocery store.  (HEB, here in Austin TX).  I don't know how pure it is.

Offline billnotgatez

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Re:KNO3
« Reply #2 on: March 10, 2006, 03:59:43 AM »
Saltpeter is sometimes used as a food preservative. I cannot vouch for its purity.

http://en.wikipedia.org/wiki/Saltpeter
« Last Edit: March 10, 2006, 04:05:57 AM by billnotgatez »

straightexhaust

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Re:KNO3
« Reply #3 on: March 10, 2006, 04:20:44 PM »
anything else?

Offline constant thinker

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Re:KNO3
« Reply #4 on: March 10, 2006, 04:35:41 PM »
I wonder if you could ask for it from a pharmacist. I know you can get sulfur sometimes and tincture of iodine.
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Offline billnotgatez

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Re:KNO3
« Reply #5 on: March 10, 2006, 08:00:39 PM »
straightexhaust-
Did you look at the link I posted?

Offline limpet chicken

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Re:KNO3
« Reply #6 on: March 11, 2006, 01:24:42 PM »
In the UK, you absolutely will not get KNO3 from a pharmacist, they used to use it in the 1800s (I have a few old medical manuals from that age, very interesting), but not any more, ebay has it usually, and its not expensive, alternatively, PM me, and I can link you to a source of conc. HNO3 itself, and making it from a sodium salt such as carbonate/hydrogen carbonate is trivial.
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Offline Alberto_Kravina

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Re:KNO3
« Reply #7 on: March 11, 2006, 01:50:04 PM »
Here in Austria you can buy KNO3(s)p.a. at the chemist's, and you don't need any special permission.

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Re: KNO3
« Reply #8 on: April 22, 2006, 01:46:07 PM »
you could make it, from poop lol, or mix some ash and soil(compost). filter the liquid out and dry it.

Offline xxMIKExx

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Re: KNO3
« Reply #9 on: June 14, 2006, 10:03:58 PM »
Spetricide brand stump remover is 100% pure KNO3. Buy it at walmart-1 pound fot $5.

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