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Make Potassium (from versuchschemie.de)
Very nice woelen, excellent write-up as per usual. |
19-12-2010 at 09:04
by: DJF90 |
Make Potassium (from versuchschemie.de)
[rquote=195649&tid=14970&author=len1] Your balls are certainly much cleaner than mine.[/rquo ... |
19-12-2010 at 02:06
by: DJF90 |
I2 crystals from tinctures - The chemistry behind it
The reaction you're looking at will be something like this:
6I- + 6H+ + 3H2O2 => 3I2 + 6H2O
... |
18-12-2010 at 11:40
by: DJF90 |
Make Potassium (from versuchschemie.de)
Whats the point in him sticking around. He's probably fed up of those making accusations, and he's t ... |
14-12-2010 at 21:28
by: DJF90 |
Gathering a distillation kit
I think thats the general case for most of us here really. The best compromise I can think of is get ... |
10-12-2010 at 20:21
by: DJF90 |
Gathering a distillation kit
Its pretty flexible for small scale work. B10 glassware is scaled towards microscale work. With B14, ... |
10-12-2010 at 19:29
by: DJF90 |
Trichloroacetic acid synthesis?
You might as well try to make it. It could be a rewarding experience. I have seen it for sale previo ... |
10-12-2010 at 19:26
by: DJF90 |
Gathering a distillation kit
24/40 is the standard taper in the US. Here in the UK, 24/29 ("B24") is a standard size. In the rest ... |
10-12-2010 at 17:19
by: DJF90 |
100% aqueous NaOH?? - yes it was brought up before
Unfortunately not, that would be a 50%w/v (=w/w) solution. |
10-12-2010 at 17:12
by: DJF90 |
Skraup Reaction- Preferred Workup?
Very elegant GC! Distillation is definately a good method if the scale is large enough. Steam distil ... |
10-12-2010 at 15:27
by: DJF90 |
Skraup Reaction- Preferred Workup?
Starting with 750mg p-toluidine, the yield was about 10%. I recall alot of tarry material in the fla ... |
10-12-2010 at 14:39
by: DJF90 |
Skraup Reaction- Preferred Workup?
Your procedure is very similar to one I have done, the main differences being that I used iodine as ... |
10-12-2010 at 12:34
by: DJF90 |
Mechanisms Needed Quick!
The Hofmann rearrangement is nitrene chemistry, and this may explain why it is a little difficult fo ... |
10-12-2010 at 02:48
by: DJF90 |
Mechanisms Needed Quick!
#3 is actually not an SnAr (theres no EWG [i]o/p[/i]- to the chloro), but actually one of the classi ... |
9-12-2010 at 22:05
by: DJF90 |
Analytical Chemistry - Precipitate
A more important effect is the ionic strength of the solution. But I'll let you go read about that o ... |
4-12-2010 at 14:51
by: DJF90 |
KOCN Assay
So what did your purity come out as Magpie?
Edit: Sorry, I must have missed it as I glazed over! S ... |
2-12-2010 at 13:41
by: DJF90 |
Looking for papers?
Reaxys, saves a bunch of time! |
2-12-2010 at 13:39
by: DJF90 |
Carbamate Synthesis
Free carbamic acids are unstable and fall apart, yeilding the free amine and carbon dioxide. Carbama ... |
30-11-2010 at 04:16
by: DJF90 |
what the heck is this? [glassware identification]
The first item is a perkin triangle, used for collecting fractions of distillate under vacuum, witho ... |
28-11-2010 at 15:46
by: DJF90 |
3,4,5-trimethoxy-beta-nitrostyrene synthesis
If its blocked by your school then you probably shouldn't be doing it...
|
28-11-2010 at 15:30
by: DJF90 |
Where can I go with my degree?
If you are interested in pharmacology, I'm sure that it is possible for you to do a postgraduate mas ... |
26-11-2010 at 16:48
by: DJF90 |
Esters
If you tell us where you are we might be able to suggest suppliers... |
26-11-2010 at 08:44
by: DJF90 |
Looking for United Kingdom sources of 250mL heating mantles and Quickfit all-glass distillation apparatus
Extortionate prices they may appear, but that IS the price of brand new quickfit glassware. If I wer ... |
24-11-2010 at 11:59
by: DJF90 |
rxn alcohols with phosphorus halides
Looks like I was stupid enough to generalise the phosphorus halides. garage chemist is correct when ... |
24-11-2010 at 04:11
by: DJF90 |
The short questions thread (3)
[rquote=193023&tid=14239&author=12AX7]Specifically, it's not 14, but the pKa of water, which ... |
23-11-2010 at 12:36
by: DJF90 |
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