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2,3-dimethyl-2-butene chemistry
I don't know much about olefines but I can tell you that last year when I was preparing my cyclohexe ...
23-7-2019 at 11:01
by: Pumukli
The most useful three things in my lab
j_sum1: not boring, because I also need a good dishwasher/someone/as a last resort me to do the wash ...
23-7-2019 at 10:49
by: Pumukli
The most useful three things in my lab
I thought I'd start this thread on the most useful equipments we use. I'd like to hear about YOUR mo ...
22-7-2019 at 02:52
by: Pumukli
How do you make your reagent labels?
Guess who poured filtered, crystal clear ammonium-nitrate solution into an UNLABELED plastic can and ...
22-7-2019 at 02:26
by: Pumukli
Anthranilic acid fail
I slowly explore parts of this particular Hofmann rearrangement and I found it more and more interes ...
21-7-2019 at 09:50
by: Pumukli
Reaction dynamics of thiosulfate ion
Maybe the slowest step is the aggregation of BaS[sub]2[/sub]O[sub]3[/sub] miniature (nanometer range ...
20-7-2019 at 00:36
by: Pumukli
4-chlorocinnamic acid synthesis without distillation
Nice synth!

I'm curious whether the product has pleasant smell or not. :)
18-7-2019 at 11:16
by: Pumukli
Mass and Weight
Good subject, Sulaiman!

I'd urge all our members if they want to do chemistry on a bit more serio ...
18-7-2019 at 05:18
by: Pumukli
Nitration and acetone
Isn't formic acid oxidized further immediately? (CO[sub]2[/sub], H[sub]2[/sub]O, more heat)

18-7-2019 at 02:55
by: Pumukli
Anthranilic acid fail
Thanks Amos, good to know that "cocoa powder" from this reaction is still as good as the original th ...
17-7-2019 at 11:37
by: Pumukli
Anthranilic acid fail
If there was an "Analytical Chemistry" subsection on this board then I were posting this there:

I ...
14-7-2019 at 11:54
by: Pumukli
Anthranilic acid fail
The "everyielding crystal source" deposited ridiculous ammounts of tan/light brown crystalls during ...
13-7-2019 at 01:22
by: Pumukli
Future-gazing: available now, restricted tomorrow?
No need to defend bleach makers! For decades, regular bleach was 5.25% (0.7 M or what) and it was no ...
12-7-2019 at 12:58
by: Pumukli
Vacuum Oven vs Kiln for Molecular Sieve Drying
Isn't it dangerous to put a few litres of wet sieves into a regular oven at high heat? I mean explos ...
11-7-2019 at 08:13
by: Pumukli
Future-gazing: available now, restricted tomorrow?
I think something happened. There was (still is) a shop, real and online as well, which stocked 96% ...
9-7-2019 at 12:57
by: Pumukli
Anthranilic acid fail
To continue my monologue I burned a sample of the powder at the tip of the blade of a thin knife. Ye ...
9-7-2019 at 06:53
by: Pumukli
Anthranilic acid fail
I was wondering that maybe what I got is the calcium salt of AA as a precipitate. (Because I used Ca ...
8-7-2019 at 23:49
by: Pumukli
Anthranilic acid fail
Well, now I'm over three different batches of anthranilic acid preparations.
But I feel dumber than ...
8-7-2019 at 04:37
by: Pumukli
Anthranilic acid fail
The actual mechanism is in question. (At least not clear 100% for me.)

Byko3y emphasized the impo ...
5-7-2019 at 23:39
by: Pumukli
Anthranilic acid fail
Nice find and translation, Mr. Wack!

The yield is especially remarkable, taking into account that ...
5-7-2019 at 21:42
by: Pumukli
Just One Meal a Day Longevity Approach
If glucose in our blood is the main culprit regarding cancer or longevity then there's the obvious l ...
3-7-2019 at 03:01
by: Pumukli
Manganese heptoxide in very low concentration
" Maybe I'll try put on small amount of Mn2O7 drop of ethanol."

To clarify things: I DID NOT let ...
30-6-2019 at 12:09
by: Pumukli
Anthranilic acid fail
Did it stand in the fridge or at room temperature?
30-6-2019 at 11:58
by: Pumukli
Manganese heptoxide in very low concentration
"How many of your students get stimulated/excited by a colour change ?"

Well, if it is on a pregn ...
30-6-2019 at 03:00
by: Pumukli
TLC Quiz
It seems that after a lot of struggle I could finaly prepare that nicotinonitrile I asked about mont ...
27-6-2019 at 11:20
by: Pumukli
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