| Search |
| [Next Page] |
help with diminshed pressure distillation
Oh ya, you definitely need an aspirator. You just need to get below the point where the acid signif ... |
24-2-2009 at 09:38
by: Arrhenius |
At what point does Sulfuric Acid reach its lowest Ph?
I should think that sulfuric acid is most highly dissociated at infinite dilution. No? Let's look ... |
23-2-2009 at 23:54
by: Arrhenius |
help with diminshed pressure distillation
[quote][i]Originally posted by Mr. Wizard[/i]
Somebody correct me if I'm wrong. The vapor pressure ... |
23-2-2009 at 23:41
by: Arrhenius |
TLC solvents
I mean... realistically... Rf values will vary between your TLC plate and mine simply from the sorbe ... |
23-2-2009 at 23:32
by: Arrhenius |
Hydrogen Peroxide simple experiments
Lol, no I'll check it out. But yes, generally, ionic peroxides are much more stable. I wouldn't go ... |
23-2-2009 at 13:55
by: Arrhenius |
CCl4 and CHCl3 from CH2Cl2
Sounds nasty... I really don't care to work with fuming inorganic substances. Not to mention the a ... |
23-2-2009 at 13:53
by: Arrhenius |
Looking for Oxalyl Chloride (Swern ox) and 3-bromoanisole
Hmm... Yes... I wouldn't draw triethylamine abstracting a proton from the dimethylsulfonium ylide (l ... |
23-2-2009 at 13:44
by: Arrhenius |
Looking for Oxalyl Chloride (Swern ox) and 3-bromoanisole
I don't know if I would call it ionic, judging purely from the proximity in electronegativity of oxy ... |
22-2-2009 at 22:46
by: Arrhenius |
TLC solvents
Maybe I've misunderstood, but you definitely want the vapor to saturate the tank. This is essential ... |
22-2-2009 at 22:37
by: Arrhenius |
Looking for Oxalyl Chloride (Swern ox) and 3-bromoanisole
That's correct. Sulfur is +1 throughtout the reaction until the last step, when dimethylsulfide leav ... |
22-2-2009 at 16:51
by: Arrhenius |
Looking for Oxalyl Chloride (Swern ox) and 3-bromoanisole
I corrected myself on TCCA v. TCT, please see above post.
[quote]
If one needs to buy TCT to get ... |
22-2-2009 at 15:32
by: Arrhenius |
Looking for Oxalyl Chloride (Swern ox) and 3-bromoanisole
Zzzzzzzzzz.... no, but he suggested making oxalyl chloride from it. Would be prudent to save yourse ... |
22-2-2009 at 14:35
by: Arrhenius |
Looking for Oxalyl Chloride (Swern ox) and 3-bromoanisole
I'm not denying your commentary, in fact I learned something. My point is, you post on these forums ... |
22-2-2009 at 14:20
by: Arrhenius |
TLC solvents
Iodine is good, but kindof slow. I would highly recommend using a basic solution of KMnO4. Just di ... |
22-2-2009 at 12:33
by: Arrhenius |
Looking for Oxalyl Chloride (Swern ox) and 3-bromoanisole
OK, fine. Buy some cyanuric chloride and run your Swern. Maybe you should make your own website whe ... |
22-2-2009 at 12:28
by: Arrhenius |
Hydrogen Peroxide simple experiments
Yep, reaction with MnO2 (or permanganate) is very exothermic producing oxygen and water vapor.
... |
20-2-2009 at 23:47
by: Arrhenius |
Looking for Oxalyl Chloride (Swern ox) and 3-bromoanisole
Swern Oxidation: You can do the swern directly with trichlorotriazine (pool chlorinator), just do a ... |
20-2-2009 at 23:28
by: Arrhenius |
TLC solvents
Can you try to explain the plate (draw it if necessary). Name all spots in the mixture by Rf. If t ... |
20-2-2009 at 22:58
by: Arrhenius |
DIY Atom Smasher
Nice power pole transformer!!  I did some some step-up experiments with those...
heh.
[Edited on ... |
31-8-2008 at 20:57
by: Arrhenius |
N,N-dimethlyformamide
I don't think this will cause any suspicion. 4L is only 1 gallon, and it's not entirely useful as a ... |
31-8-2008 at 10:04
by: Arrhenius |
ethanol purification by aluminum ?
Aluminum does absorb dyes, as in the process of anodizing. If you soak your aluminum in some aqueou ... |
30-8-2008 at 12:44
by: Arrhenius |
linoleic acid and alpha linoleic acid
Cayman Chemical:
[url=http://www.caymanchem.com/app/template/Product.vm/catalog/90150.1/a/z]Linol ... |
30-8-2008 at 12:35
by: Arrhenius |
linoleic acid and alpha linoleic acid
Commercial reference material of these two octadecanoids is obtained by isolation from plant oils. ... |
30-8-2008 at 12:32
by: Arrhenius |
DIY Atom Smasher
Cool. Depending on the high voltage feed throughs to the Dees, you may be able too hook up a high v ... |
29-8-2008 at 12:42
by: Arrhenius |
Diethylamine Synthesis
I think you will find a cosolvent to cause problems. For instance, if your mixture contains ethanol ... |
29-8-2008 at 12:33
by: Arrhenius |
| [Next Page] |
