Nitromethane Synthesis - Archive Thread

[Anthony]

Mammut
A new voice
Posts: 39
From: Essen,NRW,Germany
Registered: JAN 2001
posted February 13, 2001 08:58 AM
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hi,
do i get nitromethane if i mix
CH3OH with H2SO4/HNO3?
Can someone tell me the reaction
CH3OH + H2SO4/HNO3 ---> ???? + ????

thanks

[This message has been edited by ALENGOSVIG1 (edited February 13, 2001).]


atropine
Frequent Poster
Posts: 129
From: wales
Registered: OCT 2000
posted February 13, 2001 02:07 PM
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i would edit that post b4 any one sees it. you will be flamed.


wantsomfet
Frequent Poster
Posts: 233
From: EU
Registered: JAN 2001
posted February 13, 2001 03:32 PM
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The reaction for nitromethane needs several hundred degree C, if i remeber correct, and a platinum catalyst. Nothing for the hobbychemist.
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Cricket
Frequent Poster
Posts: 160
From: USA
Registered: OCT 2000
posted February 13, 2001 03:41 PM
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In KIPE2 (or was is it 1?) it tells the industrial procedure for making Nitromethane. It is very expensive to get the equiptment to make it. When I saw the diagram I just said "Fuck this.". I dont think their is an easy to make it. It is just too usefull for it to be easy to make.


MacCleod
Frequent Poster
Posts: 215
From:
Registered: DEC 2000
posted February 13, 2001 10:28 PM
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I beleive I read recently that only 2 chemical plants currently make nitromethane,that's one of the reasons it's so expensive.There was a supplier in South Carolina called F H S Supply,Inc. that sold NM racing fuel (for model cars,planes,etc.) with up to 65% NM in it.At that time the price was $30.48 per (single) gallon,or $21.34 per gal. when buying a case or more (4 gallons per case).This info is a few years old,but if you call them they'll send you a new price sheet;thier toll-free # was:
1-800-742-8484.
The toll # was:
1-803-222-7488.


megalomania
Administrator
Posts: 651
From: USA
Registered: SEP 2000
posted February 14, 2001 05:40 PM
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The industrial rxn uses methane gas at about 450 °C and several ATM's of pressure. Nitric acid (100%) is sprayed in through atomizer nozzels. I have thought about trying this by heating up an air pressure tank, but unless you have a good way to drain off the product, which I do not. yield will be crappy and time consuming.
Of course I do have a method of synthesizing nitromethane using laboratory equip/chems at my website if your interested.

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DarkAngel
Frequent Poster
Posts: 591
From: ?
Registered: SEP 2000
posted February 15, 2001 01:01 PM
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Finally i found a source in Holland that sells 99,6%Nitro Methane for 18 USD
I convert it with this site: <a href="http://www.xe.net/ucc/full.shtml" target="_blank">http://www.xe.net/ucc/full.shtml</a>
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atropine
Frequent Poster
Posts: 129
From: wales
Registered: OCT 2000
posted February 15, 2001 01:36 PM
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Well, sorrey bout that, it would appear that you didn't. In the Uk nitromethane is commanly available in most model shops. And if they don't have it they will usualy get it for you at £14 a litre.

[xyz]

Shouldn't this be in chemistry related?

Does anyone know a supplier of nitromethane in Australia?

[0EZ0]

Nitromethane can be had for those who keep their eyes and ears open, as with almost all chems. A local RC model aircraft/car/etc. club would be a good place to start asking around. All you have to show is that you are a keen model aircraft/etc. enthusiast and you are looking to formulate some of your own fuel. Which could be quite true, as in my case <img border="0" title="" alt="[Wink]" src="wink.gif" /> . A bit of small talk, and there you have it :) .

<small>[ March 07, 2003, 06:18 AM: Message edited by: 0EZ0 ]</small>

[Mr Cool]

I think an OTC nitromethane synthesis will be in my plans for the coming weeks, it all seems easy enough. Vinegar, pool hypochlorite, a strong acid (HCl masonry cleaner, for example), nitrite from nitrate. It should be a nice experiment to try.
Has anyone here tried it before, and if so, do you have any tips which might help? At the moment I think I'll concentrate the vinegar using distillation from CaSO₄, Ca(NO₃)₂ etc a few times since I'm worried about side-reactions if using, for example, sodium ethanoate and sulphuric acid.

<small>[ March 08, 2003, 04:27 PM: Message edited by: Mr Cool ]</small>

[VX]

I have tried concentrating vinegar, and also making ethanoic acid from meths (denatured alcohol). I would suggest making it from alcohol any day; it's so much easier! All it takes is to reflux ethanol with a strong oxidiser, (e.g. potassium permanganate) for about an hour, and there you are, pure(ish) ethanoic acid!

[Polverone]

I don't think you should have any real worries about side-reactions between sodium acetate and H2SO4. But if you don't want to use H2SO4, you could use H3PO4 instead, as it is a weaker acid and dehydrating agent. However, since it is weaker, I would think you would surely want to use anhydrous sodium acetate. And it is somewhat tricky to completely dry sodium acetate without scorching it.

For the chlorination are you using phosphorus, sulfur, iodine, or a mixture as your chlorination aid?

[knowledgehungry]

I read megas synth and was wondering if there was a way to make chloroacetic acid(besides using red phosphorous) or an otc source for it.
Thanks.

[megalomania]

Chloroacetic acid is not the kind of thing you would find in the stores. I know of no product that uses it. It is pretty much limited to use in some organic synthesis setups and industrial operations.

It took me a few years to find the synth I have on my website. Since then I have seen no other method of producing it but the one I found. I think even the industrial method chloronates acetic acid like this IIRC. Modern processes use artifical sun lamps to get the reaction along, but those are specialized, and expensive, bits of equipment.

I am moving this thread to Chemistry Related.

<small>[ March 09, 2003, 01:24 AM: Message edited by: megalomania ]</small>