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P2NP Recrystallization

Novator
Apr 19, 2023
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1-phenyl-2-nitropropene recrystallization 1-phenyl-2-nitropropene video amphetamine breaking bad p2np p2np recrystallization recrystallization stimulant

Reactions: Foryou, papu, bblanco and 5 others

Beware of the lacrymator (tear-gassy) effect of P2NP in solution. Don't dry it in the oven. It will be a bad day.

Also, it can be washed with a sodium bisulphite solution to remove any remaining benzaldehyde.

even after re-crystallization, it remained very dirty, if the video shows the usual p2np. at least recrystallize again, and even better, send the whole without purification to p2p

any alcohol will do, it has not to be only IPA. You forget the most important of all buddy, that is to wash / ruinse the P2BP crystals with sodium bisulphite after recrystallization. Whatever method you used to make the P2NP always a small ampount (0.25% up to 5%) of benzaldehyde always contaminate the crsytals of P2NP when they crash out. Sodium bisulphite 6-8% solution in water is the best and most easy way to wash out that benzaldehyde. benzaldehyde interfere in whatever reaction you had in mind for your P2NP

OrganicGuy007 said:
any alcohol will do, it has not to be only IPA. You forget the most important of all buddy, that is to wash / ruinse the P2BP crystals with sodium bisulphite after recrystallization. Whatever method you used to make the P2NP always a small ampount (0.25% up to 5%) of benzaldehyde always contaminate the crsytals of P2NP when they crash out. Sodium bisulphite 6-8% solution in water is the best and most easy way to wash out that benzaldehyde. benzaldehyde interfere in whatever reaction you had in mind for your P2NP

how will you separate the bisulfite derivative from p2np?

How should P2NP be ideally stored?

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