Syntéza alfa-PVP (stupnica 1-10 kg). Kompletný videonávod.

[Ukspice]

@William Dampier

Potrebujete pomoc s meraniami

Namiesto použitia :Valerofenón
Kúpim kvapalinu : 2-brómovalerofenón

Ak chcem použiť 1liter

2-Brómovalerofenón

Aké množstvo činidla budem potrebovať na I liter:


-Kyselina hydrobrómová (HBr) 48 %;?

-Peroxid vodíka (H2O2) 35%;?

-pyrolidín (CAS 123-75-1);???

-Etylacetát ;???

-Uhličitan sodný (Na2CO3) 20% aq roztok;??

-Dietyléter (Et2O) ????

-EtOH 50 ???

-Kyselina dibenzoyl-D-vínna ??

-Dichlórmetán (CH2Cl2) 830 ml;

-Hexán ????

Kyselina chlorovodíková konc. 35 % (HCl);...?

VEĽMI BY MI POMOHLO, KEBY STE MI MOHLI POSKYTNÚŤ MERANIA PRE POUŽITIE 1 LITRA 2-BRÓMU. PROSÍM?????

Aby som mohla odhadnúť náklady na reakciu, je odhad výťažku približne 20 % straty
1 liter = 800 g a-pvp?

 

[Marvin "Popcorn" Sutton]

Napísal som vám PM.

 

[Spikkel93]

Got the same question can u send me also in pm ?
Thanks in advance

 

[SpaceRocket]

hello, I have a question, I have all the steps. followed the process and have a nice a-pvp with a result of 80%. I do it on a larger scale between 1 and 0.5 kg bromo, but now I wonder how I can get large, beautiful crystals because if I try to recrystallize in water it grows. back like little needles. You can see on the picturen powder what i have made and the cristals sombody els but he dont want to tel me how he did it if sombody can help me wild be great!!!

 

[G.Patton]

Hi, how do u recrystallize it?

 

[SpaceRocket]

I am loking for method how to cristalize , when i want to cristalize i get nedel cristal like this on the photo

 

[G.Patton]

a-PVP crystallization

 

[RegulierTier]

Can I replace the ethylacetate with toluene or TBME?
I don't have a rotovap so destill under vacuum would be a problem...

 

[SpaceRocket]

I did it with 2 infrared lamps and had to evaporate 16.9 ethiel acetate in plastic containers, which took me 30 hours and i dry my powder also with the lamps that go very fast in view hours your powder is dry