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MttLsp
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Pure Sodium Metal
I'm interested in isolating pure Sodium metal from Sodium compounds and this is what I have so far:
1) Li + NaCl --> LiCl + Na
2) 2Mg + 2NaOH --> 2MgO + H2 + 2Na
3) Electrolysis of molten NaCl
Are there any other methods besides these?
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Lambda-Eyde
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Electrolysis of molten NaOH:
http://www.sciencemadness.org/talk/viewthread.php?tid=9797
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Sciocrat
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Reaction of NaOH with aluminium or magnesium (better).
I have also read that a reaction of molten Pb and NaCl could give Na, but unfortunately except for it being mentioned, I haven't found any other
useful information about this method.
[Edited on 10-8-2010 by Sciocrat]
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MttLsp
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Thanks both of you were very helpful 
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Vanilla47
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Castner Sodium Process
Hi !
Castner Sodium Process must be suitable !
A Free PDF for Download !
http://vanilla47.com/PDFs/ClandestineChemistry/Amphetamine/T...
Hell ain't a Bad Place to Be
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Rogeryermaw
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there are about a hundred other threads on sodium production here.
http://www.sciencemadness.org/talk/viewthread.php?tid=14491
http://www.sciencemadness.org/talk/viewthread.php?tid=9797
http://www.sciencemadness.org/talk/viewthread.php?tid=14457#...
try these out first
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1281371269
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Why does 1.) work?
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metalresearcher
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Really nice section of a book of 1953 ! I read about women were ladling off molten sodium from NaOH bath and a backyard cast Ni anode !
[Edited on 2010-9-28 by metalresearcher]
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OctanitroC
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Sorry to resurrect a dead thread, but I've been looking for resources about Castner cell construction and ran across several Na production threads,
including this one. 1.) works because it's carried out at a temperature where Na is gaseous but Li isn't, so the equilibrium is driven towards the
products by continuous evaporation of Na out of the reaction mixture. Needless to say, it's not the best suited for home use, as the temperatures
necessary are quite high and suitable apparatus for condensing gaseous Na are necessary.
And then I discovered this charming young man had stolen my kidney!
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blogfast25
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Creates a mess of mixed Na and MgO from which Na is very difficult to extricate. Just forget about that one altogether.
@Octa:
With a BP of 883 C for Na (1330 C for Li) complete separation of Na and Li would be difficult, unless strong vacuum is applied. It's not really
something hobbyists can achieve easily, this combination of high temp + high vac.
[Edited on 17-3-2014 by blogfast25]
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HgDinis25
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You should also look into electrolysis of a sodium salt in propylene carbonate. There are several threads here that talk about this. It would be
interesting if someone tried it because, AFAIK, no one has tried it.
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Zyklon-A
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A few people have tried it. And I will be as soon as my propylene carbonate comes.
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blogfast25
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Like who? You mean here or literature reports?
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HgDinis25
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Looking forward to it then xD
I've been wanting to make sompe popylene carbonate but was waiting for a positive confirmation from someone, about the sodium route. I could always
try it myself, but the past months have been really busy, and I haven't had much time for chemistry.
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HgDinis25
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I believe he's talking about a member who posted a really good way to make propylene carbonate with some high yelds. On that topic someone refered
having a little bit of sucess. Going to dig to se if I can find such topic.
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Oscilllator
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@ HgDinis25 are you talking about This thread?
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Zyklon-A
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I mean literature reports, I don't know of anyone here who has tried it.
Quote: Originally posted by HgDinis25  |
I believe he's talking about a member who posted a really good way to make propylene carbonate with some high yelds. On that topic someone refered
having a little bit of sucess. Going to dig to se if I can find such topic. |
No, I bought my propylene carbonate, I wasn't talking about that.
[EDIT]
Me too! You can read about here. Although no action has been made as far as trials or testing are concerned. Because my PC hasn't come yet.
[Edited on 18-3-2014 by Zyklonb]
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HgDinis25
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Yap, looks like you were the one I was talking about. I remembered it because of the good chemistry that was done on that topic, but I had seen it a
few months ago, so I wasn't sure.
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nezza
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If you can get hold of it sodium can be prepared by carefully heating small quantities of sodium azide in an inert atmosphere. The big proviso being
that the azide must be pure and it must be heated carefully.
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HgDinis25
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| Quote: Originally posted by nezza | | If you can get hold of it sodium can be prepared by carefully heating small quantities of sodium azide in an inert atmosphere. The big proviso being
that the azide must be pure and it must be heated carefully. |
Do you have any references to back you up or am I just missing something? That sounds like a good way to lose a few fingers...
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elementcollector1
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The decomposition of sodium azide is indeed explosive - it's how air bags work (or used to, at any rate).
Elements Collected:52/87
Latest Acquired: Cl
Next in Line: Nd
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Zyklon-A
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I remember reading on this forum, someone isolated cesium by decomposing the corresponding azide. I think her name was Valentine. (I hope it was a
'her'.) I will look for it....
[edit]
Here it is:http://www.sciencemadness.org/talk/viewthread.php?tid=22890&...
[Edited on 18-3-2014 by Zyklonb]
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HgDinis25
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My best bet is that, when descending in the alkaline series, the azides get more stable to explosion. Wiki states that potassium azide, already, can
be used to isolate potassium:
http://en.wikipedia.org/wiki/Potassium_azide
Elementcollector was actively participating on the topic you've posted so he should be able to share some light on us.
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elementcollector1
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The decomposition of caesium azide was carried out under inert atmosphere, with no flame-related sources of heat. Even then, the yield wasn't very
good, and followup experimentation was nonexistent (I would have been interested to see where 15-20g would have gotten Valentine).
Decomposition of azides is hazardous, because if the strictest conditions are not followed, azides tend to explode. Given that you have to first
distill hydrazoic acid, react this with a caesium salt and isolate this compound, then melt it, I would not suggest this route.
Caesium is already explosive enough - don't add to the danger!
Elements Collected:52/87
Latest Acquired: Cl
Next in Line: Nd
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Zyklon-A
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I have no intention to get cesium yet.
No to mention the fact that this is on the subject of producing sodium.... As if we didn't have enough threads on this topic.
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