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Making Relatively Pure Alumina
Depends on how deep you want to dive into the plant materials. Componenets in the low ppm range may ... |
10-2-2016 at 08:00
by: Pumukli |
What shall I do with an old pressure cooker ?
Sounds interesting.
But afaik the local pressure cookers cook (boil water) at 112 C, which is 1.5 b ... |
7-2-2016 at 10:24
by: Pumukli |
Chemicals for crystal growing
How do you suspend a small crystal on a thread? I mean, I always had the impression that the thread ... |
6-2-2016 at 15:51
by: Pumukli |
propiophenone from calcium propionate and calcium benzoate
Thanks, byko3y.
May I ask how do you know that? Are you one of the authors? :-)
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4-12-2015 at 10:45
by: Pumukli |
2-octanol
Arggh, just the usual Magpie quality work - which makes me envious more and more. (I'm still in the ... |
4-12-2015 at 10:41
by: Pumukli |
propiophenone from calcium propionate and calcium benzoate
I'm not more knowledgeable but accidentally came across this article. It does use an inert solvent a ... |
30-11-2015 at 09:49
by: Pumukli |
2-octanol
Very good!
Btw. isn't 2-octanone a useful compound? If you made it rather than the 2-octanol at f ... |
27-11-2015 at 07:19
by: Pumukli |
chlorination of benzene
[rquote=428705&tid=64394&author=JJay]Hmm I have a big bag of FeCl3... I bought it for someth ... |
23-11-2015 at 12:04
by: Pumukli |
chlorination of benzene
Depends on how do you define "special condition".
It does not require microwaving, sonication, UV ... |
19-11-2015 at 11:48
by: Pumukli |
chemsketch
They wanted to let you go at first but after they saw your username in SM they changed their minds. ... |
8-11-2015 at 12:07
by: Pumukli |
Filtration - any issue with using positive pressure instead of vacuum?
Once I tried applying a bit of pressure over a diethyl-ether containing solution/solid particles mix ... |
8-11-2015 at 11:50
by: Pumukli |
Very high temp (3000+ deg F) reaction vessel - uses in chem?
I don't want to ruin the party but having a high temp capable forge is one thing (which I also wish ... |
7-11-2015 at 08:32
by: Pumukli |
Putrescine Toxicity
I don't know the classical banana experiment because we extracted DNA from E. coli bacteria. We used ... |
3-11-2015 at 00:19
by: Pumukli |
Benzotriazole and derivatives
Boffis: "commercially available as a hair dye ingredient" - how should we interpret this?
Did you ... |
2-11-2015 at 10:35
by: Pumukli |
Putrescine Toxicity
"potentiator of other amines" seems to be a fairly good explanation on what it does.
I would say ... |
31-10-2015 at 11:56
by: Pumukli |
sebacic acid
What happened to the second batch? Did something go wrong and you sent it down the drain? :-)
I e ... |
25-10-2015 at 23:01
by: Pumukli |
Quaternary ammonium salt from triethanolamine
My two cents:
I would try something between methyl- to butyl-iodide. I mean the first four primar ... |
25-10-2015 at 06:49
by: Pumukli |
Bad days in the lab or with glassware?
Unfortunately thiosulphate is not very effective against bromine in the gas phase. :-)
At first I ... |
24-10-2015 at 23:42
by: Pumukli |
Caffeine citrate synthesis?
The deal is that some compounds have a hard time to crystallize without "seeding". You can help them ... |
21-10-2015 at 22:54
by: Pumukli |
Nicotine and Lobeline
Geee, I'm a bit late with the warning that nicotine was used as an insecticide too... I know you kno ... |
21-10-2015 at 09:52
by: Pumukli |
Home made Stands & clamps
Thanks for the tips, Aga!
I bought five 1 meter long threaded steel rods and a couple of fitting ... |
21-10-2015 at 09:23
by: Pumukli |
Homemade evaporation setup - is this plausible?
Once I tried freeze drying whole (small) mushrooms to preserve their natural shape as much as possib ... |
21-10-2015 at 06:19
by: Pumukli |
Chemistry of Terephthalic acid
Melting point of terephthalic acid is around 425 Celsius, its monoamide melts above 340 Celsius, dia ... |
18-10-2015 at 03:05
by: Pumukli |
Caffeine citrate synthesis?
I stand corrected, caffeine is the right spelling. The hydrate means citric acid monohydrate. |
17-10-2015 at 12:52
by: Pumukli |
Caffeine citrate synthesis?
You need coffeine and citric acid.
Once I mixed equal masses (5g : 5g) coffeine and citric acid hyd ... |
17-10-2015 at 00:58
by: Pumukli |
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