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Black Pepper Extraction results!
... irect water-NaOH solution, in order to react all other stuff into water soluble form and remain the piperine to be settled and filtered? piperine dissolved 40mg/L so it can be practically washed with ...
27-1-2021 at 02:47
by: Fyndium
Are hexane and petroleum ether interchangeable?
... ontainer of pentane, and let the crystals grow by vapour diffusion.

From experience, I know that piperine, benzoic acid, and triphenylmethanol are almost completely insoluble in pet ether. Substit ...
19-11-2020 at 14:37
by: DraconicAcid
Soxhlet uses for extracting compounds?
... es? [/rquote]

[rquote=646583&tid=156045&author=TriiodideFrog]I used a soxhlet to extract piperine from black pepper and capsaicin from chilli peppers.

[/rquote]

OK, technically that i ...
16-10-2020 at 06:35
by: unionised
Can i recycle toluene solvent for a long time?
I think a setup like I had in my piperine extraction might work as work around for a dean stark apparatus, its a little more labour i ...
7-3-2020 at 09:38
by: Syn the Sizer
An economical chain of experiments?
... go all the way to benzilic acid. Or start with peppercorns and see if you can do the extraction of piperine and then work through to piperonal.

Watch our videos if you want the cheat sheets on the ...
11-1-2019 at 21:09
by: chemplayer...
NaOH as substitute for KOH
If the spicy chemical is piperine and the solvent is alcoholic one should consider some difficulty in dissolving NaOH without ...
28-4-2018 at 06:05
by: S.C. Wack
Best organic compounds for crystallization
[rquote=515204&tid=82067&author=Hegi]
I agree with you that piperine forms beautiful crystals, but it is problem to obtain such crystals when the compound its n ...
22-4-2018 at 02:09
by: LearnedAmateur
Route specific impurities piperine/piperonal
... uthenium chloride?

The piperonal was prepared through a catalytic ruthenium tetroxide (RuO4) of piperine...

Methods section? We might not be speaking about the same research article..[/rquote]
...
14-4-2018 at 12:06
by: Reboot
Help for a young scientist
... e)
-potassium carbonate from wood ashes or banana peel ash(better)
-caffeine from coffee or tea
-piperine from white/black pepper (this can further be processed to other chemicals, but some are on ...
7-3-2018 at 21:54
by: Amos
What was your first organic chem experiment?
... ne extraction (done chromatography alot). Lactose looks interesting so will do that at the weekend. piperine i would do but seems i have a bit of an allergy to pepper.

At some point I want to do a ...
10-10-2017 at 07:11
by: NEMO-Chemistry
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