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looking for specific vacumn pump
IrC: Any idea what that valve is called technically? (Or where I can buy it from?). I searched for " ... |
28-12-2012 at 23:15
by: DJF90 |
Interesting photochemical oxidation of indoles
[quote] If this works, than there would be a safe, well working and easily made photochemical oxidat ... |
28-12-2012 at 21:34
by: DJF90 |
Ideas for a solvent trap/scrubber?
There are a couple downsides to what you suggest Lambda; A salt ice mixture reaches at best about -2 ... |
28-12-2012 at 06:09
by: DJF90 |
Synthesis of 2-Phenyl-Indole
I've done the preparation of 2-iodophenylhydrazine via reduction of the diazonium with SnCl2. The pr ... |
23-12-2012 at 16:45
by: DJF90 |
Best and worst smelling chemicals?
I quite like the smell of NaBr and HBr; both smell kind of fruity to me. Absolutely fucking hate HCl ... |
18-12-2012 at 00:28
by: DJF90 |
Building a polarimeter
@Watson: A cursorary search has revealed the yellow LED's closest to me have a wavelength peak of 59 ... |
18-12-2012 at 00:18
by: DJF90 |
Freezing Bromine: video
So one thing that has suprised me is that noone seems to have mentioned the lachrymatory effects of ... |
14-12-2012 at 22:44
by: DJF90 |
Potassium to Sodium Borohydride
you havent illustrated why KNH4 doesnt suffice, and what it is you're trying to achieve by this meta ... |
14-12-2012 at 13:17
by: DJF90 |
Potassium to Sodium Borohydride
I think you're barking up the wrong tree. Use the KBH4 as is, its a suitable replacement for NaBH4 i ... |
14-12-2012 at 12:33
by: DJF90 |
Potassium to Sodium Borohydride
Using NaOH will never work, clearly. If you consider the known preparation of KBH4 from NaBH4, you'l ... |
14-12-2012 at 10:56
by: DJF90 |
Building a Syringe Pump?
I like that you've posted about this. Its something that has been on my mind for a while now.... Som ... |
14-12-2012 at 08:33
by: DJF90 |
Goddamned NMR
First off, I'll ask if this is based on homework or exam questions. If so, you're only going to be d ... |
11-12-2012 at 17:07
by: DJF90 |
HEXAVALENT CHROMIUM
sodium metabisulfate solution completely reduces it to Cr(III). Precipitation as the (hydrous) oxide ... |
11-12-2012 at 16:41
by: DJF90 |
Cancer of science: the impact factor
It might also be worth drawing attention to this: http://www.orgsyn.org/orgsyn/pdfs/v88p0001.pdf I'v ... |
11-12-2012 at 05:47
by: DJF90 |
Freezing Bromine: video
Nice video Woelen, it was interesting to see. Whats your preferred method for making bromine from aq ... |
11-12-2012 at 03:56
by: DJF90 |
Quick question: Oximes
Have you checked by TLC for purity of starting materials? 0.5% CuCl2 in MeOH is a good stain for oxi ... |
7-12-2012 at 07:31
by: DJF90 |
p-benzoquinone HELP!!!
@Ephesian: I roughly followed the method outlined by Christian at VC: http://www.versuchschemie.de/t ... |
7-12-2012 at 06:23
by: DJF90 |
Cancer of science: the impact factor
I've done reactions where the claimed yield was never obtained (and significantly above what I achie ... |
7-12-2012 at 00:46
by: DJF90 |
p-benzoquinone HELP!!!
It seems like you're not letting the reaction go to completion. I've already mentioned that at the e ... |
7-12-2012 at 00:19
by: DJF90 |
The short questions thread (3)
I will send you the requisite amount, remind me when we speak tomorrow. |
3-12-2012 at 15:37
by: DJF90 |
Thiourea oxidation at low pH
I know a little of the chemistry of thiourea(s). Thiourea itself can be oxidised to the sulfonic aci ... |
3-12-2012 at 08:15
by: DJF90 |
The short questions thread (3)
Cool, really glad I could help answer your questions and inspire you simultaneously.
Quick quest ... |
2-12-2012 at 16:33
by: DJF90 |
Issues gassing Acetic Acid with HBr from H3PO4 and NaBr
You won't distill the phosphoric acid. It ends up dehydrating and polymerising, yielding meta and po ... |
2-12-2012 at 16:23
by: DJF90 |
Adhesive that boils/decomposes under 250C
10-thou is a reasonable but close tolerance. The instruction leaflet for this bottle of super-adhes ... |
27-11-2012 at 15:15
by: DJF90 |
The short questions thread (3)
@Smaerd: This question reminds me of the template approach to macrocyclic ligand synthesis. Great, s ... |
27-11-2012 at 15:03
by: DJF90 |
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