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Grease sources for glassware joints?
Which is, what, half the price of Dow Corning high vacuum grease? The last tube I bought was 50g for ... |
4-12-2014 at 07:34
by: forgottenpassword |
The Short Questions Thread (4)
Evidently the liberated oxygen volatilizes some hydrogen peroxide. So what you are smelling is the " ... |
4-12-2014 at 07:30
by: forgottenpassword |
Grease sources for glassware joints?
Good point, that. Certainly there will be more stress on the glass due to different expansion rates; ... |
4-12-2014 at 03:58
by: forgottenpassword |
stupid beginner mistake
Well, fair enough. Maybe you should try working with a starting material that costs several hundred ... |
4-12-2014 at 02:29
by: forgottenpassword |
Grease sources for glassware joints?
For every day use (non-vacuum applications) I too am a big fan of vaseline. It works: it provides th ... |
4-12-2014 at 02:24
by: forgottenpassword |
Black gunk that should be NaNO3
If you have finished neutralizing the solution, perhaps you can dissolve it in hot water and filter ... |
3-12-2014 at 06:37
by: forgottenpassword |
The Short Questions Thread (4)
Put some cling-film over the top, or something; and reduce your stirring rate. Try doing the reactio ... |
3-12-2014 at 06:00
by: forgottenpassword |
Black gunk that should be NaNO3
I don't know any copper chemistry, but surely that explains it: you've made some black copper compou ... |
3-12-2014 at 05:57
by: forgottenpassword |
stupid beginner mistake
I've tipped my hard-won product into a separating funnel with the stopcock open, before. It's a mist ... |
3-12-2014 at 05:52
by: forgottenpassword |
Will this Reaction Work?
I don't see why not. Solubility may be an issue. And pyridine isn't exactly harmless (if you're a ma ... |
3-12-2014 at 05:18
by: forgottenpassword |
NEED HELP WITH CHEMISTRY
Why post crap? |
3-12-2014 at 01:18
by: forgottenpassword |
Ridiculously easy alkali organometallic synth? (Benzyllithium)
[rquote=373618&tid=51199&author=chemrox][rquote=372720&tid=51199&author=forgottenpas ... |
2-12-2014 at 12:15
by: forgottenpassword |
Chlorination of tertiary amino alcohol
I've given you a procedure which is pretty-much as easy as they come. Why do you want more discussio ... |
2-12-2014 at 06:32
by: forgottenpassword |
Our prolific, multifaceted troll- ban him or not?
It was a joke. Dr. Doctorate. Big laughing face. A joke. Humour. |
2-12-2014 at 06:26
by: forgottenpassword |
Water exchange between different hygroscopic salts
[rquote=373493&tid=49671&author=Gargamel]@forgottenpassword:
I don't understand why this is ... |
2-12-2014 at 02:33
by: forgottenpassword |
Our prolific, multifaceted troll- ban him or not?
[rquote=373691&tid=52155&author=No Tears Only Dreams Now]I have to say, I(and hopefully some ... |
2-12-2014 at 02:24
by: forgottenpassword |
legality of explosives in uk?
If you are going to do this, I would do it with the full knowledge and consent of the authorities. Y ... |
2-12-2014 at 02:10
by: forgottenpassword |
Hydrogen and the flying stopper
Simply time. Hydrogen is a good purging gas, so if it was left purging slowly for half an hour then ... |
2-12-2014 at 01:13
by: forgottenpassword |
Hydrogen and the flying stopper
Be very careful that all of the air is removed from the flask before you ignite it. If there is some ... |
2-12-2014 at 01:05
by: forgottenpassword |
chemistry of GOLD, known reactions and techniques
Be advised that such journals do not remain open access forever, so -- if as seems likely -- you hav ... |
2-12-2014 at 00:56
by: forgottenpassword |
DCM storage
[rquote=373523&tid=52040&author=gdflp]And how can you relate chloroform and dichloromethane? ... |
1-12-2014 at 10:50
by: forgottenpassword |
DCM storage
Fair enough. I'm talking about the real risk of handling and using it. I can't deny that it MAY caus ... |
1-12-2014 at 10:28
by: forgottenpassword |
Homework Questions-
[rquote=373513&tid=41534&author=smaerd]Rather then just giving the answers it might be best ... |
1-12-2014 at 10:15
by: forgottenpassword |
DCM storage
[rquote=373512&tid=52040&author=gdflp]DCM is a carcinogen[/rquote]DCM has NOT been proven to ... |
1-12-2014 at 10:08
by: forgottenpassword |
Homework Questions-
Step 2: Br2, hv gives benzylic bromination.
Step 3: KOtBu gives styrene.
Step 4: mCPBA gives styre ... |
1-12-2014 at 08:39
by: forgottenpassword |
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