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How do I reply to a specific post?
I mean the type that ends up in a box in the post of interest.
Frank |
3-1-2011 at 16:36
by: FrankMartin |
Desperately seeking method for ethyl bromide.
Thanks to all. I can make it by the usual methods, but I have some bromine I want to use up.
Fran ... |
2-1-2011 at 17:03
by: FrankMartin |
Desperately seeking method for ethyl bromide.
We have elemental bromine and now we need a catalyst to drive the following reaction:
EtCl + 0.5Br2 ... |
1-1-2011 at 19:21
by: FrankMartin |
Testing Phase Transfer Catalysts in a Malonic Ester Synthesis.
[u]Aim:[/u] To test 15 calalysts in the Malonic Ester Synthesis of tButyl MalonicEster.
[u]Experim ... |
3-12-2010 at 21:52
by: FrankMartin |
Purifying condensation-reaction products.
As an example I want to remove the glycerine from the reaction product:
Glyceryl Cocoate + 3 (Mon ... |
30-10-2010 at 18:46
by: FrankMartin |
Getting a clean alcohol flame
Our spirit lamp has a ground-glass cover to keep moisture and rubbish away from the wick when not be ... |
26-10-2010 at 21:09
by: FrankMartin |
variable reflux ratio tips and advices
The only way I know to fix bumping in the distillation flask is to either use porous chips or an air ... |
24-10-2010 at 13:45
by: FrankMartin |
variable reflux ratio tips and advices
We use the procedure:
Ensure the distillation flask is heated evenly and there are boiling chips ... |
23-10-2010 at 17:13
by: FrankMartin |
Getting a clean alcohol flame
We used to mix a little water with the alcohol to produce a clear blue flame. Do some tests in a s ... |
19-10-2010 at 16:19
by: FrankMartin |
heating with flame.
The one shown is a "Makita HG6020" with 3 settings plus temperature selections at the base from 1 - ... |
15-10-2010 at 15:15
by: FrankMartin |
Obtaining Hexane (Down-under)
Hexane, heptane, MEK, toluene, xylene from....
http://www.oilchem.com.au/products/solvents
2 ... |
14-10-2010 at 17:01
by: FrankMartin |
heating with flame.
We have some success with a heat gun. The one shown has temperature settings at its base. Quite g ... |
14-10-2010 at 16:18
by: FrankMartin |
TLC Software.
The one pictured is from the following site.
http://www.sorbfil.com/en/index.htm
and it seems OK, ... |
11-10-2010 at 13:43
by: FrankMartin |
Reposted pictures of TLC plates.
I upload the pictures (TLC plates) relevant to my post of the 9Oct10
[file]11739[/file] [file]11 ... |
9-10-2010 at 16:01
by: FrankMartin |
TLC help needed.
ziqquratu:
I have done as you suggested and used silca plates and a solvent mix of 25%tBuMeEther a ... |
8-10-2010 at 18:24
by: FrankMartin |
Gas-phase apparatus construction
Heating wire (Nichrome) may be investigated here:
http://www.wiretron.com/nicrdat.html
There m ... |
6-7-2010 at 16:37
by: FrankMartin |
TLC help needed.
YouTube has some demos on TLC
http://www.youtube.com/watch?v=EUn2skAAjHk |
5-7-2010 at 16:57
by: FrankMartin |
TLC help needed.
Thanks. I have been searching Merck and others for supply of plates and they're very expensive. I ... |
4-7-2010 at 18:41
by: FrankMartin |
TLC help needed.
Can someone help me with a suitable solvent system for the analysis of products from the malonic-est ... |
4-7-2010 at 16:40
by: FrankMartin |
Possible route to acetic anhydride.
And where would that be? It's not on the front page.
|
21-6-2010 at 17:49
by: FrankMartin |
Possible route to acetic anhydride.
What about the shift reaction:
PhthalicAnhydride + 2GlacialHOAc = AceticAnhydride + PhthalicAcid? ... |
21-6-2010 at 17:13
by: FrankMartin |
nButyl Malonic Ester
Am trying the synthesis of nBuMalonicEster by the PTC route.
I am using the following stoic.:
DE ... |
18-6-2010 at 17:35
by: FrankMartin |
Testing phase-transfer catalysts.
I have some TetraButylAmmoniumFluoride, TBAChloride, TBABromide, TBAIodide. Also PEG400, 18C6, and A ... |
4-6-2010 at 20:01
by: FrankMartin |
Super-dry ethanol: test for.
Thank you. Just now I have discovered a method in a very old Organic Reagent book, and this sugges ... |
31-5-2010 at 22:46
by: FrankMartin |
Super-dry ethanol: test for.
I am seeking a simple test to check if super-dry ethanol is not water contaminated.
Perhaps some ... |
31-5-2010 at 21:20
by: FrankMartin |
