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Advice on which analytical instrument to buy: FTIR, NMR, GCMS, GS, MS, NIR, etc
It's very frustrating to do experiments and not know the final outcome of the reactions. I'm now thi ... |
30-8-2016 at 19:08
by: beerwiz |
Best way to reduce noise/silence a vacuum pump?
I do vacuum distillations quite often using a rotary vane vaccum pump and the noise during the disti ... |
29-8-2016 at 00:35
by: beerwiz |
Buying a real fume hood!!
The hood looks good but it's huge. How do you get it through the door? Can it be disassembled into s ... |
30-5-2016 at 05:15
by: beerwiz |
Collecting solid from filter paper after filtration - what is the proper technique?
I tried to do that just now with a well dried piece of filter paper with embedded product. Using a m ... |
26-5-2016 at 22:58
by: beerwiz |
Vacuum Desiccator vs Rotary Evaporator
Rotavaps remove the solvent much faster than regular distillation or a vacuum dessicator. But I've f ... |
26-5-2016 at 22:31
by: beerwiz |
Collecting solid from filter paper after filtration - what is the proper technique?
I often filter high value solids with vacuum filtration and very often a lot of solids remain on the ... |
26-5-2016 at 22:18
by: beerwiz |
How to decompose precipitated alkaloids in Wagner's Reagent?
Tested it, the zinc acetate remains in solution and does not precipitate. |
25-12-2015 at 01:41
by: beerwiz |
How to decompose precipitated alkaloids in Wagner's Reagent?
Thanks to all who responded on this thread, very useful info.
Does anyone know if when Wagner's r ... |
22-12-2015 at 22:05
by: beerwiz |
How to form formalin from paraformaldehyde?
[rquote=427471&tid=4759&author=JJay][rquote=427430&tid=4759&author=beerwiz]I do this ... |
12-11-2015 at 16:54
by: beerwiz |
How to decompose precipitated alkaloids in Wagner's Reagent?
Wagner's reagent is an alkaloid precipitant and constists of 2g Iodine and 6g Potassium iodide in 1 ... |
12-11-2015 at 16:52
by: beerwiz |
How to form formalin from paraformaldehyde?
I do this all the time. To get a 37% formaldehyde solution, weigh out 37g of paraformaldehyde and pu ... |
12-11-2015 at 10:38
by: beerwiz |
Buying methanol
Buy the 60 liters if you have the storage space for it. |
3-6-2015 at 12:58
by: beerwiz |
OTC Ethyl Acetate - Non acetone nail polish remover
MEK substitute is no longer sold in the big box stores, they have reverted to selling the original M ... |
2-6-2015 at 21:38
by: beerwiz |
OTC Ethyl Acetate - Non acetone nail polish remover
I needed ethyl acetate to do some TLC tests so I turned to the non-acetone nail polish remover that ... |
2-6-2015 at 20:38
by: beerwiz |
Advice on Pond Pump for aspirator setup?
A) Can someone summarize which aspirator and which water pump you need to get down to 10 mmHG (10 To ... |
17-5-2015 at 23:01
by: beerwiz |
Ergotamine extraction
If it isomerizes it's no issue there's a simple procedure to convert to the active form. I have a fr ... |
21-9-2014 at 01:25
by: beerwiz |
Ergotamine extraction
[rquote=346884&tid=34422&author=Actinium][rquote=346878&tid=34422&author=aga][rquote ... |
20-9-2014 at 12:38
by: beerwiz |
Ergotamine extraction
[rquote=346875&tid=34422&author=Actinium]in the literature it talks about using U.V. while l ... |
20-9-2014 at 11:26
by: beerwiz |
Ergotamine extraction
[rquote=346869&tid=34422&author=forgottenpassword]The only tip I could give you is that ergo ... |
20-9-2014 at 10:15
by: beerwiz |
Ergotamine extraction
After about 20 minutes, what seemed like an emulsion fully separated and I was able to do a clean se ... |
20-9-2014 at 09:43
by: beerwiz |
Ergotamine extraction
Have some ergot extract with 50% alkaloids and tried to do an alkaloid extraction.
Added 100ml wate ... |
20-9-2014 at 07:09
by: beerwiz |
Sourcing Tetrahydrofuran OTC?
Anyone know of a way to source pure Tetrahydrofuran over the counter? |
14-2-2014 at 06:40
by: beerwiz |
Vacuum Distillation - Best Vacuum Pump? Will the glassware implode?
[rquote=318209&tid=28843&author=ZIGZIGLAR]Have you tried using a [url=http://www.sigmaaldri ... |
14-2-2014 at 06:35
by: beerwiz |
Dimethyl Sulfate Fumes and Safety Tips?
I'm working on a methylating reaction using dimethyl sulfate at low temps (15-16 C) for the first ti ... |
14-2-2014 at 06:29
by: beerwiz |
Vacuum Distillation - Best Vacuum Pump? Will the glassware implode?
[quote]
Also I'm not sure a vacuum distillation of sodium bisulfate will yield pyrosulfate. I'm pre ... |
6-2-2014 at 21:48
by: beerwiz |
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