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Homeblown retort
This is a problem, especially if the glass is not particularly uniform either in thickness or in com ... |
8-9-2011 at 04:16
by: fledarmus |
Substitute high boiling point solvent
Then you're just using the trichlorobenzene as a heating bath?
For 200*C, I think I would switch ... |
7-9-2011 at 04:25
by: fledarmus |
Soxhlet extraction @.@ HELP!!
It seems to me that the most informative place to begin timing would be when your first drops of con ... |
7-9-2011 at 04:12
by: fledarmus |
Soxhlet extraction @.@ HELP!!
[rquote=220782&tid=17394&author=Olioli]
I'm not quite sure if I can optimize the temperatur ... |
2-9-2011 at 06:49
by: fledarmus |
Soxhlet extraction @.@ HELP!!
If you think about it, it really isn't your pot temperature that you want at the boiling point of yo ... |
1-9-2011 at 05:46
by: fledarmus |
hygroscopy
[rquote=220699&tid=17409&author=shadow]So you should be able to dry it, and it would perfect ... |
1-9-2011 at 04:41
by: fledarmus |
crystalization of amines in industry
Possibly something like this?
[url=http://en.wikipedia.org/wiki/Hydrocyclone]hydrocyclone[/url]
... |
22-8-2011 at 13:18
by: fledarmus |
Grease sources for glassware joints?
For whatever grease you are using, the key is to use as little as you need to avoid contaminating yo ... |
19-8-2011 at 04:13
by: fledarmus |
Solvent Pot Problems
If a significant amount of water gets into the still all at once, it can coat your sodium with NaOH ... |
12-8-2011 at 12:31
by: fledarmus |
sulfur and tarnishing
Unfortunately, there is no way around the sulfur in the propane, and it will tarnish your silver. Yo ... |
12-8-2011 at 12:21
by: fledarmus |
Direct heating of flat-bottom flasks
This is very useful for heating solvents to their boiling point for recrystallizations. It isn't as ... |
4-8-2011 at 04:29
by: fledarmus |
The short questions thread (3)
[rquote=217098&tid=14239&author=Lambda-Eyde]Is the -CH<sub>2</sub>OH substituent ... |
4-8-2011 at 04:18
by: fledarmus |
What the hell...
My guess is it was once an advertisement for a scientific glassblower or glassware supply house. Wou ... |
4-8-2011 at 03:50
by: fledarmus |
Proteins with the same primary structure but different functions?
I can think of three possible cases off the top of my head which might be partial answers to your qu ... |
26-7-2011 at 13:33
by: fledarmus |
Synthesis N,N-Dimethyl tryptamine
Thank you for the references Nicodem - I don't have time to do a full comparison now, but I will get ... |
15-7-2011 at 09:29
by: fledarmus |
Synthesis N,N-Dimethyl tryptamine
I don't think he's talking about the methylation reactions, Nicodem - the starting material in the s ... |
15-7-2011 at 08:15
by: fledarmus |
Carotene extraction help
[rquote=215873&tid=16991&author=bob800]
[quote]
To extract carotene you grind five grams ... |
15-7-2011 at 05:37
by: fledarmus |
Diethylamine Synthesis
[rquote=215812&tid=11081&author=overload]Does anyone know the difference between diethylamin ... |
14-7-2011 at 09:07
by: fledarmus |
Menthol extraction from peppermint
Peppermint candy has very little peppermint in it - my recipe uses 1/2 teaspoon (~2.5mL) peppermint ... |
13-7-2011 at 10:17
by: fledarmus |
Menthol extraction from peppermint
[rquote=215731&tid=16977&author=Kamikaza]. The peppermint is made up mostly of sugar and a l ... |
13-7-2011 at 09:25
by: fledarmus |
The short questions thread (3)
That's just a shorthand to say that anything could be connected to the other end of the bond. Rather ... |
12-7-2011 at 08:14
by: fledarmus |
A question to educators about Potential Energy
Well, if you really want them to get the point, hang a sword over their heads by a single hair. Bein ... |
12-7-2011 at 07:51
by: fledarmus |
Rossi cold fusion machine
A US patent is not valid if it is not enabling, and in a field with this much skepticism, the patent ... |
12-7-2011 at 07:41
by: fledarmus |
Ordering glassware
[rquote=214812&tid=16880&author=Arthur Dent]The question of boring holes in stoppers is a go ... |
1-7-2011 at 12:17
by: fledarmus |
Help with quinoline synthesis
There is a 2006 Synlett synthesis (with no bromo substituent) starting from the aminoacetophenone th ... |
24-6-2011 at 10:55
by: fledarmus |
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