Sintesi dell'alfa-PVP (scala 1-10 kg). Video tutorial completo.

Ukspice

Don't buy from me
Resident
Language
🇬🇧
Joined
Oct 5, 2022
Messages
29
Reaction score
8
Points
3
@William Dampier

Ho bisogno di aiuto con le misure

Invece di usare :Valerofenone
Comprerò il liquido : 2-Bromovalerofenone

Se voglio usare 1 litro

2-Bromovalerofenone


Qual è la quantità di reagenti di cui avrò bisogno per ogni litro?


-Acido idrobromico (HBr) 48%;?

-Perossido di idrogeno (H2O2) 35%;?

-Pirrolidina (CAS 123-75-1);?

-Acetato di etile;?

-Carbonato di sodio (Na2CO3) in soluzione acquosa al 20%;?

-Etere etilico (Et2O) ????

-EtOH 50 ???

-Acido diibenzoil-D-tartarico?

-Diclorometano (CH2Cl2) 830 mL;

-Esano ????

Acido cloridrico conc. 35% (HCl);...?

SAREBBE DAVVERO UTILE SE POTESTE DARMI LE MISURE PER L'USO DI 1 LITRO DI 2-BROMO. PREGO?????

In modo che io possa costo per reazione, anche è la stima di rendimento circa 20% di perdita
1 litro = 800g a-pvp?
 

SpaceRocket

Don't buy from me
New Member
Language
🇳🇱
Joined
Jan 31, 2025
Messages
4
Reaction score
2
Points
3
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!!!
 

Attachments

  • FzyidSQvRu.jpg
    FzyidSQvRu.jpg
    506 KB · Views: 5
  • N0I8idfcMh.jpg
    N0I8idfcMh.jpg
    5.2 MB · Views: 16

G.Patton

Expert
Joined
Jul 5, 2021
Messages
2,825
Solutions
3
Reaction score
3,117
Points
113
Deals
1
Hi, how do u recrystallize it?
 

SpaceRocket

Don't buy from me
New Member
Language
🇳🇱
Joined
Jan 31, 2025
Messages
4
Reaction score
2
Points
3
I am loking for method how to cristalize , when i want to cristalize i get nedel cristal like this on the photo
 

Attachments

  • eU8GvAp0NF.jpg
    eU8GvAp0NF.jpg
    5.3 MB · Views: 17

RegulierTier

Don't buy from me
Resident
Language
🇺🇸
Joined
Dec 23, 2022
Messages
59
Reaction score
33
Points
18
Can I replace the ethylacetate with toluene or TBME?
I don't have a rotovap so destill under vacuum would be a problem...
 

SpaceRocket

Don't buy from me
New Member
Language
🇳🇱
Joined
Jan 31, 2025
Messages
4
Reaction score
2
Points
3
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
 

Attachments

  • FmZS8Qf73a.jpg
    FmZS8Qf73a.jpg
    6.6 MB · Views: 21
Top