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Hexane extraction
If hexane works, butane should work as well I guess.

About the human consumption I would be care ...
26-8-2020 at 09:10
by: Tsjerk
Nitric acid questions
Of course learning how to do a distillation is priceless, but for dissolving metals from circuit boa ...
26-8-2020 at 08:20
by: Tsjerk
Most toxic compound OTC?
My plants are in pots on my roof terrace , so the growth is limited by the size of the pot, I don't ...
26-8-2020 at 06:03
by: Tsjerk
Most toxic compound OTC?
My Ricinus plants are doing well! There are a couple hundred more beans maturing on the two plants I ...
26-8-2020 at 04:42
by: Tsjerk
Recommendations for synthesis of medicines and other medical organic molecules.
Ok... Read capitalized where I wrote bold.

OP is German AF, but was only "practicing" his German ...
23-8-2020 at 02:07
by: Tsjerk
Small scale production of H2SO4 in the amateur lab
JJay, have a look at the pdf I attached above. Here the decomposition is done in borosilicate and pe ...
22-8-2020 at 05:29
by: Tsjerk
How is yeast dried so its viable when re-hydrated
I think there will definitely be a difference between washed and unwashed! There is only no differen ...
21-8-2020 at 08:40
by: Tsjerk
How is yeast dried so its viable when re-hydrated
The fingerprint on plate is a cool experiment! What we used to do was first one unwashed finger, the ...
19-8-2020 at 13:31
by: Tsjerk
Lab clear out sale
If you can't get rid of it in one go I'm interested in smaller quantities of some of those!
18-8-2020 at 05:50
by: Tsjerk
Ethanol Distillation
99% ethanol is sold as bio-ethanol here to be used in decorative fireplaces. It also only contains M ...
18-8-2020 at 00:22
by: Tsjerk
Small scale production of H2SO4 in the amateur lab
I would still go for the bisulfate/pyrosulfate route as suggested by Atara.

17-8-2020 at 13:48
by: Tsjerk
Ethanol Distillation
Why would you use a the sticky CaCl2 instead of sand? Every drop of CaCl2 spilled will form a sticky ...
17-8-2020 at 07:44
by: Tsjerk
How is yeast dried so its viable when re-hydrated
The bacteriological-grade agar is made to do analysis on, for example LC-MS on secondary metabolites ...
17-8-2020 at 05:57
by: Tsjerk
Ethanol Distillation
If you would choose a glass vessel, I would advice to use a sand bath. A sand bath is as simple as s ...
17-8-2020 at 02:38
by: Tsjerk
Recommendations for synthesis of medicines and other medical organic molecules.
[rquote=643125&tid=155888&author=fdnjj6][rquote=643118&tid=155888&author=Tsjerk]You ...
15-8-2020 at 14:01
by: Tsjerk
Recommendations for synthesis of medicines and other medical organic molecules.
You don't have to use caps lock in English. That is only done in German. It looks like you are shout ...
15-8-2020 at 05:41
by: Tsjerk
Preparation of Mononitrotoluenes (o-, p-)
You don't have to worry about crystallizing the ortho isomers, the para and or meta impurities drop ...
12-8-2020 at 03:47
by: Tsjerk
Preparation of Iodomethane
Very nice and easy preparation! I'm running it at the moment. I did notice however there are copious ...
12-8-2020 at 02:37
by: Tsjerk
How is yeast dried so its viable when re-hydrated
Stationary phase means they came to rest, so they notice at some point nutrients are running low and ...
9-8-2020 at 22:47
by: Tsjerk
Cubane; Dimethyl Cubane-1,4-dicarboxylate synthesis
Cool! I can advice when making the ethylene diketal to run the Dean Stark as slow as you can. Ethyle ...
9-8-2020 at 14:26
by: Tsjerk
Rotary cane vacuum basics: use CaCl2 drying tube instead of cold trap
I don't think CaCl2 keeps hold of water under vacuum. You can even dry CaCl2 by leaving it in very d ...
9-8-2020 at 07:52
by: Tsjerk
Cubane; Dimethyl Cubane-1,4-dicarboxylate synthesis
Update: I'm pretty sure I finally got compound [b]10[/b] (the dibromdicyclopentadiene-1,8-dione keta ...
9-8-2020 at 06:18
by: Tsjerk
What features would you add on sciencemadness
Fun topic to discuss about, but practically: have you ever programmed?

7-8-2020 at 08:57
by: Tsjerk
IUPAC or common name
There are even common names in IUPAC, like aconitane.

Edit: And chloroquinolin of course...

[Ed ...
6-8-2020 at 11:51
by: Tsjerk
Latest chemical order?
Gallium does expand when it freezes, maybe it cracked it the plastic?
4-8-2020 at 18:54
by: Tsjerk
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