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Author Topic: Sedits Random Experiment Threed.  (Read 661 times)

Vesp

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Re: Sedits Random Experiment Threed.
« Reply #40 on: September 28, 2009, 02:33:20 AM »
Hopefully that is a decent way to produce acetaldehyde! Probably could be improved if a vac were pulled on it to the point the alcohol present were near, if not, boiling.
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Sedit

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Re: Sedits Random Experiment Threed.
« Reply #41 on: September 29, 2009, 01:10:18 AM »
Hmmm... Who would have thunk it......

I made a boo boo on an already improper experiment. My goal was to take some 30% nitromethane solution and add a bit of H2O and NaOH. Then add some Zinc powder to see if it produces Methylamine. I have never performed a high PH dissolving metal reduction and all that I have heard of use acidic conditions.

Well I went to add NaOH to MeOH/30%MeNO2 but I accidently put way to much NaOH into the solution.... Well you can guess what happened a few minutes later, even with a cold water bath, The NaOH started to take off and over heat...

Shit I thought its gonna boil off all the MeNO2 and I will not get to test it... but then the strong rank smell hit me.... Methylamine :o .... WTF... I never even added any zinc. Just the action of the Hot ass concentrated NaOH solution was enough to reduce Nitromethane to methylamine.

Has anyone ever heard of such a thing? Today seems to be the day of unexpected results..

Earlier I was trying to oxidise EtOH to AcOH but got acetaldahyde instead... when I went to check on it fruitflys where covering my electrochemical cell more then likely smelling the acetaldahyde formed and thinking my cell was one giant Apple.
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Vesp

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Re: Sedits Random Experiment Threed.
« Reply #42 on: September 29, 2009, 01:13:44 AM »
NaOH forms some sort of salt with Nitromethane.. Perhaps you've formed this instead?
I don't see how it could have reduced it to methylamine.

Also fruit flys love acetic acid as well as acetaldehyde.
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Sedit

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Re: Sedits Random Experiment Threed.
« Reply #43 on: September 29, 2009, 01:15:14 AM »
The smell of Methylamine was undeniable no doubt about it. Why is completely beyond me.
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You pissed off the wasp now enough is enough!!!

Michael Moore

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Re: Sedits Random Experiment Threed.
« Reply #44 on: September 30, 2009, 03:45:50 PM »
Just make sure you do not distill to dryness - the sodium salt of nitromethane is explosive!

Sedit

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Re: Sedits Random Experiment Threed.
« Reply #45 on: September 30, 2009, 09:29:57 PM »
Thanks for telling me. I didn't know that but am all ears for any explosion warning they even worry me more then poisons. Poisons have antidots but explosions even if your no where around can cost you your freedom quickly.

It is of no real concenrn here though because I had no intention of distilling it or collecting(hence the random prefix on the title of the thread ;)) and my main concern was to just test the smell to see if methylamine was produced. I find it strange that it was produced without any metal and in the future I want to eliminate any chance that contamination produced the results that it did.

Also can you explain to me the structure that the Sodium salt of nitromethane would take on?
There once were some bees and you took all there stuff!
You pissed off the wasp now enough is enough!!!

Sedit

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Re: Sedits Random Experiment Threed.
« Reply #46 on: October 01, 2009, 12:40:20 AM »
The oxidation of Ethanol to Acidic acid was a complete failure and a wounderful triumph all at the same time. See I have been tring to oxidise ethanol with all my might in a MnSO4/H2SO4 solution yet no matter what I do I can not get it to oxidise pass Acetaldahyde. So now I am going to attempt sometime soon to run the Cell with toluene still in the mix when the powers on. If it all goes wrong and I end with benzoic acid that is ok as I will just turn it to benzene with NaOH which I wanted for some time anyway.

I have decided to say hell with the use of MnSO4 however because its just not going to get me where I want to be. On the other hand... permagnates are well known to produce my desired effect but I have non. Electrosynthesis of magnates is well know so I am considering fusing MnO2 and NaOH and placing this in the cathode NaOH solution this should get my to where I need to be as alkaline conditions are a must for this I believe.
There once were some bees and you took all there stuff!
You pissed off the wasp now enough is enough!!!

Prepuce1

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Re: Sedits Random Experiment Threed.
« Reply #47 on: October 01, 2009, 04:06:05 AM »
Sedit, you probably know already that the big hardware stores sell KMnO4 to put in some sort of water purifying system. I've got about 5 lbs of the stuff that I bought a long time ago for the hell of it.

Also, for anyone who doesn't know it already,. the people who make HEET have started putting some kind of oil into the IPA product. I've got several bottles of the stuff and am going to try distilling it. The oil gives the liquid a slight yellow tinge, but there's nothing on the bottle that would tip you off.

PP
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