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KMnO4 synthesis
I was doing some more experimenting today and though what the heck I am just going to try adding som ...
21-8-2006 at 17:52
by: Cesium Fluoride
KMnO4 synthesis
Wow, I am SOOO jealous! This second batch that worked- you waited a day before you added the acid to ...
20-8-2006 at 20:08
by: Cesium Fluoride
Lye Drain Cleaner
Will NaOH react with anhydrous glycerine though?
20-8-2006 at 14:26
by: Cesium Fluoride
Lye Drain Cleaner
Scrap the heating idea, just realized you'd get almost all acrolein, which is a carcinogen among oth ...
20-8-2006 at 10:14
by: Cesium Fluoride
Lye Drain Cleaner
That's sodium metal and ethanol that makes the ethoxide. And you're right the glycerol idea wouldn't ...
20-8-2006 at 09:55
by: Cesium Fluoride
Lye Drain Cleaner
Would NaOH react with glycerine? NaOH is used in saponification of fat and in this reaction glycerin ...
20-8-2006 at 09:23
by: Cesium Fluoride
Lye Drain Cleaner
I suggested glycerin not alcohol.
20-8-2006 at 09:17
by: Cesium Fluoride
Lye Drain Cleaner
Long time ago, I had a mix of NaCl, NaNO3, and NaOH. I fractionally crystallized out the NaCl, but c ...
20-8-2006 at 09:11
by: Cesium Fluoride
KMnO4 synthesis
Tim, thank you for proving I am not crazy- I appreciate it! All of what you describe sounds identicl ...
19-8-2006 at 21:08
by: Cesium Fluoride
KMnO4 synthesis
not_important, with your help and that of others I think I may be close to figuring this whole thing ...
19-8-2006 at 20:35
by: Cesium Fluoride
KMnO4 synthesis
My thinking is that my yields are so low that the fumaric acid is able to cause the whole thing to r ...
19-8-2006 at 16:38
by: Cesium Fluoride
KMnO4 synthesis
Ok, I aborted my trial today after 30 minutes of strong heating. I washed my MnO2/graphite and notic ...
19-8-2006 at 14:44
by: Cesium Fluoride
KMnO4 synthesis
Thanks for that information not_important.

I'm not sure, but I think KClO3 decomposes into oxygen ...
19-8-2006 at 08:52
by: Cesium Fluoride
KMnO4 synthesis
Hodges,

Your explanation may be plausible. The only impurities I know of are graphite and zinc, ...
18-8-2006 at 18:04
by: Cesium Fluoride
KMnO4 synthesis
Welll, I have purified MnO2 a long time ago sucessfully. It was annoying though. It involved reactin ...
18-8-2006 at 15:31
by: Cesium Fluoride
KMnO4 synthesis
I think that the "unstable" sodium manganate is exactly the issue :(. Why for instance do we hear so ...
18-8-2006 at 15:02
by: Cesium Fluoride
KMnO4 synthesis
Although I don't have those values on hand, I don't think that the melting point of Na2MnO4 or K2MnO ...
18-8-2006 at 14:35
by: Cesium Fluoride
KMnO4 synthesis
Potassium permanganate decomposes near its melting point of 270C. I'm sure the case is similar for s ...
18-8-2006 at 14:22
by: Cesium Fluoride
KMnO4 synthesis
Ok, I got pretty much the same results as last time with 10g MnO2 and 20g NaOH. The mix was heated a ...
18-8-2006 at 14:11
by: Cesium Fluoride
KMnO4 synthesis
4NaOH + 2MnO2 + O2 --> 2Na2MnO4 + 2H2O

For 20g of MnO2, stoichiometry dictates that about 18.4 ...
18-8-2006 at 11:24
by: Cesium Fluoride
KMnO4 synthesis
After heating, my mix was not one huge solid mass. It was more like a bunch of dry crumbs. I will tr ...
18-8-2006 at 10:17
by: Cesium Fluoride
KMnO4 synthesis
I am interested in synthesizing potassium permanganate and this week I came painstankingly close. In ...
17-8-2006 at 23:20
by: Cesium Fluoride

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