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Dry ice as a laser medium
The fact that there is one easy UV laser does not detract from the fact that, in general, they are d ... |
26-11-2003 at 14:24
by: unionised |
Catalytic chlorination
Thanks for pointing out the fact that reactions are generally faster with hot reactants; I'm su ... |
26-11-2003 at 14:02
by: unionised |
bromination of nitrobenzene
OK, Sorry.
I'm amazed that your prof hasn't got a copy of this book
http://cgi.ebay.co.u ... |
24-11-2003 at 16:02
by: unionised |
Trinitrophenol (TNP)
That means that it is 4 to 6 times better at killing bacteria than phenol. That, in turn means it is ... |
24-11-2003 at 14:37
by: unionised |
Silica Gel
Even if it is converted into dust and you breathe it in, it still doesn't cause silicosis. (I&# ... |
24-11-2003 at 14:29
by: unionised |
Hydrazine
Silver mirror test and Greenwood and Earnshaw. |
24-11-2003 at 14:26
by: unionised |
Dichloromethane ?
CaCl2 does dissolve in methanol, but that's not the point.
If you wanted to remove traces of ... |
24-11-2003 at 14:24
by: unionised |
bromination of nitrobenzene
Ok So you don't have much of a library. You do have google. If you want to brominate nitrobenze ... |
24-11-2003 at 14:20
by: unionised |
Hydrazine
Good luck, I seem to recall that a few ppm of metals will kill the reaction and that temperature co ... |
23-11-2003 at 16:20
by: unionised |
Dichloromethane ?
Toluene mixes with both, come to think of it you might try isooctane or cyclohexane which don't ... |
23-11-2003 at 16:17
by: unionised |
Dry ice as a laser medium
UV lasers are generally particularly difficult; the upper excited state lifetimes are normally rathe ... |
23-11-2003 at 15:34
by: unionised |
Salt Bridge
Can't say I blame you. I gather there is a nice bright green copper arsenate. 
This thread s ... |
23-11-2003 at 15:24
by: unionised |
Open Posting of Sources
Just a thought, if the "powers that be" wanted to find out where the new "user friend ... |
23-11-2003 at 15:18
by: unionised |
Dichloromethane ?
I'm sorry, could you explain that please, I know they add toluene or benzene to the ethanol wat ... |
23-11-2003 at 15:00
by: unionised |
Hydrazine
Wot? no glue?
2NH3 +3NaClO ---> 3NaCl +N2 +3H2O
Unless you are rather lucky and add suitable ... |
23-11-2003 at 14:57
by: unionised |
Silica Gel
Crystaline silica (Quartz to be exact) is; silica gel isn't (or, at least it is a great deal le ... |
23-11-2003 at 14:52
by: unionised |
bromination of nitrobenzene
Page 864 of the fifth edition of Vogel's textbook of practical organic chemistry(ISBN 0-582-462 ... |
23-11-2003 at 14:49
by: unionised |
Benzene nitration by-products
Strange as it seems, trinitro resorcinol is (occasionally) used as a reagent. Like picric acid it fo ... |
23-11-2003 at 12:19
by: unionised |
Dichloromethane ?
Last paint stripper I used had methanol in as well, how do you break the azeotrope |
23-11-2003 at 12:12
by: unionised |
Catalytic chlorination
The nitrogen mustards are not nice chemicals so I would be careful about adding NCl3 to alkenes.
W ... |
23-11-2003 at 12:09
by: unionised |
NaNO2 failure
Microtek.
That's an expensive synthesis of washing soda. Sodium nitrite oxidises carbon (I jus ... |
23-11-2003 at 11:57
by: unionised |
Ruthenium Tetroxide
The product formed from ammonia, alkali and silver nitrate (or from ammonia and silver oxide) is qui ... |
23-11-2003 at 06:21
by: unionised |
Salt Bridge
Fe(OH)2 is not stable in the presence of air. You could swap the electrodes and hope to get Ni(OH)2 ... |
23-11-2003 at 06:02
by: unionised |
Silica Gel
Marvin,
I'm puzzled why you don't think microwave ovens have a lab use. These people
htt ... |
22-11-2003 at 05:03
by: unionised |
Catalytic chlorination
AlCl3 is usually thought of as a catalyst in the Friedel-Krafts acylation of arenes. The trouble is ... |
22-11-2003 at 04:09
by: unionised |
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