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Strange purple compound when oxidizing p-aminophenol
I got interested in this after the discussion here. Here's what transpired: http://pubs.acs.org/doi/ ... |
22-8-2011 at 22:58
by: len1 |
Sodium metal - Illustrated Practical Guide
Someone asked me for a link to the Sodium chapter I referred to. Here its is.
http://books.google ... |
31-7-2011 at 02:41
by: len1 |
Sodium metal - Illustrated Practical Guide
A number of people have asked me questions about sodium, and also UV chlorination in the other threa ... |
6-7-2011 at 23:11
by: len1 |
Make Potassium (from versuchschemie.de)
The Mg I used in my first post up the thread, was what I have in the lab for Grignards. But I have s ... |
23-2-2011 at 21:31
by: len1 |
Book
Thanks for your kind words Fleaker.
Yes I use CsCl and Ca in the prep, but there was some diffic ... |
21-2-2011 at 03:55
by: len1 |
Make Potassium (from versuchschemie.de)
I had verified the reaction mechanism I posted not just based on the overall stoichiometry from the ... |
10-1-2011 at 22:34
by: len1 |
Make Potassium (from versuchschemie.de)
You must use at least 20% Mg powder with the turnings as in my post above. The reasons they dont wor ... |
7-1-2011 at 19:23
by: len1 |
Make Potassium (from versuchschemie.de)
I meant of course structure of surface of solid potassium obtained this way, not molten potassium (? ... |
31-12-2010 at 22:53
by: len1 |
Make Potassium (from versuchschemie.de)
I had yields of about 50% in paraffin oil, which was dependent on the source of paraffin, I used thr ... |
27-12-2010 at 17:27
by: len1 |
Make Potassium (from versuchschemie.de)
K floats in paraffin oil alright. I have found it difficult however to get paraffin pure enough so t ... |
26-12-2010 at 18:31
by: len1 |
Make Potassium (from versuchschemie.de)
I think its OK to heat pyrex directky on a hot plate. Around here oil baths to 250C are frequently u ... |
24-12-2010 at 19:27
by: len1 |
Make Potassium (from versuchschemie.de)
According to the theory above, my experiments with magnesium turnings 3 years ago failed because the ... |
22-12-2010 at 00:14
by: len1 |
Make Potassium (from versuchschemie.de)
Yes, thats what I was saying up the thread, that you can coalesce potassium a few degrees within its ... |
21-12-2010 at 14:52
by: len1 |
Make Potassium (from versuchschemie.de)
@woelen If I read your site correctly, you stirred only when adding butanol and still got 85% yield ... |
21-12-2010 at 03:20
by: len1 |
Make Potassium (from versuchschemie.de)
I had thought Mg would still be in excess on an MgO basis given I found it was in more than 2-fold e ... |
20-12-2010 at 17:30
by: len1 |
Acquiring chemical distillation glassware in Queensland
Yes unfortunately the situation in Australia has changed greatly over the last few years, and any ch ... |
19-12-2010 at 18:28
by: len1 |
Make Potassium (from versuchschemie.de)
Nice write up Wilco.
A couple of suggestions.
1) My experiment heating KOH in D70 with no magn ... |
19-12-2010 at 15:02
by: len1 |
Make Potassium (from versuchschemie.de)
Above about 230C I found patassium can metallate some paraffins and lead to decomposition - so perha ... |
19-12-2010 at 03:25
by: len1 |
Make Potassium (from versuchschemie.de)
Hi Nurdrage, I looked at your video, but its hard to tell due to the resolution. Maybe you can tell ... |
19-12-2010 at 01:37
by: len1 |
Make Potassium (from versuchschemie.de)
Well Ive made another run and there are some conclusions.
The gas given out during the reaction was ... |
19-12-2010 at 00:13
by: len1 |
Make Potassium (from versuchschemie.de)
The other thing of course is that formation Mg(OH)2 in the overall reaction
Mg+2KOH-> Mg(OH)2 ... |
18-12-2010 at 18:41
by: len1 |
Make Potassium (from versuchschemie.de)
I have coalesced purified potassium and sodium under toluene and xylene. And although I finally pref ... |
18-12-2010 at 16:30
by: len1 |
Make Potassium (from versuchschemie.de)
Remember I had a 30cm condenser connected, so that not much condensable matter would have made it pa ... |
18-12-2010 at 14:27
by: len1 |
Make Potassium (from versuchschemie.de)
The difference in what nicodem wrote from the reaction I and blogfast had been proposing is that MgO ... |
18-12-2010 at 14:10
by: len1 |
Make Potassium (from versuchschemie.de)
The patent says there is vigorous evolution of hydrogen at 130C. There is certainly a vigorous evolu ... |
18-12-2010 at 05:57
by: len1 |
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