Sinteza P2P iz glikidatnih etrov BMK

Saul

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to je priprava P2P fenilacetona CAS 103-79-7 z uporabo BMK glikidne kisline ( natrijeva sol ) CAS 5449-12-7 z glavno sestavino sulfonsko kislino moč je 75 % CAS 7664-38-2
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pripravili bomo 1 kg BMK
vzamemo 5-litrsko bučko z dvojnim vratom
dodamo 500 ml vrele vode . začnemo z mešalnikom.
zdaj počasi dodajte 1 kg soli BMK. nato dodajte 1 liter sulfonske kisline. zdaj priključite povratni tok in segrejte vsebino erlenmajerice na najvišjo temperaturo. plus minus 130 °C. uporabite močan mešalnik.
Pustite, da vre v refluksu 4 ure.
vzemite zgornjo plast in jo prelijte v merilno posodo.
spodnjo plast pustite, da se ohladi, in jo shranite za naslednjič. ( pri tej metodi priprave nimamo kemičnih odpadkov)

zdaj zavrite 1 liter vode in jo dodajte v merilno skodelico. z ročnim mešalnikom vse premešajte.
Po nekajminutnem mešanju pustite merilno skodelico, da se ohladi na sobno temperaturo.
odstranite zgornjo belo plast (to je voda in odpadki, ki jih ne potrebujemo)
spodnja plast je prečiščena in pripravljena za uporabo.

ps: pri tej pripravi nam ni treba skrbeti, da bi v P2P ostala voda, saj voda tehta manj kot P2P.

ps2: če upoštevate ta razmerja, bo imel P2P ph vrednost 4 .
Če uporabimo več sulfonske kisline, se bo ph vrednost znižala na 1. Zato ni treba uporabiti preveč sulfonske kisline.
 
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w2x3f5

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Poskusil sem vašo različico sinteze, vendar nisem uporabil vode, sinteza poteka v mikrovalovnem obsevanju. V določenem trenutku se je temperatura močno znižala s 110 stopinj na 50 stopinj, reakcija je bila še vedno burna. Ali ste opazili padec temperature, ko se začne sproščati ogljikov dioksid?
FTmRKvXwj3
 

cernalit0000

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dober večer a 1k bmk 5449-12-7 vprašanje. Relise with 1k phosphoric. Znižati na ph 3 prečiščeno.
na koncu rindios. 200 g prahu je normalno ali v q neuspešno??
 

w2x3f5

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V angleščini mi lahko pišete v zasebnih sporočilih
 

G.Patton

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Ali uporabljate H3PO4 kons ali razredčeno raztopino? Hvala za vaše mnenje.
 

cernalit0000

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Dober večer izvaja sintezo
Uporaba 1k bmk 5449-12-7
2 litra vode. 200 g sode
Počakajte 1 uro, da se raztopi 70g dodajte 1k fosforja. Za 2 uri še
800g p2p. Nato očistite z vodo. Dobil sem 750 ml.
Reagiral sem. Za destilacijo sem sprostil 500 ml. In v destilatorju
mi je dal 200 tisočakov za vezavo z vinskim kamnom. Nizek končni donos. 100 g na q falleee????
 
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G.Patton

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Hola, amigo. Angleščina, prosim.
 

w2x3f5

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Poskusite hidrolizo v čisti fosforjevi kislini v mikrovalovni pečici. Dobil sem izkoristek 80 odstotkov teoretičnega, p2p dobre kakovosti, met se je izkazal za odličnega, zdaj optimiziram sintezo p2p na natrijevem borohidridu.
Pozneje bom objavil rezultat ponovljene sinteze v mikrovalovni pečici, pomembno je, da dobimo stabilen rezultat ponovljene sinteze.
 

mithyl2

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hvala, ker ste nas obvestili. kakšen je najboljši način za pridobivanje čiste fosforne kisline? je trdna snov, mar ne?
 

Win Win

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Rad bi vprašal, ali ta recept deluje.
 

G.Patton

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Pozdravljeni, ne vem. Niste jasno opisali svojega načina. Ne morem vam odgovoriti. Ne morem vam prebrati misli. Lahko mi pišete v DM s svojim vprašanjem, da bi se izognili poplavi pod to temo,
 

chef learner

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Če za izdelavo P2P uporabim BMK, katero metodo naj uporabim za izdelavo metamfetamina v drugi fazi?
 

Johnson212

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Če imam bmk natrijevo sol, ali naj začnem neposredno pri koraku hidrolize HCL?
 

Throw-off

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Da. PREBERITE celotno temo, na katero je bilo že prej 7-krat odgovorjeno.
 

should

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Hello sir, what is saltwater used for? Sodium chloride solution?
 

Aisabelcosta

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Hi @G.Patton , I'm thinking of using 41232-97-7 instead of 5449 and I want to follow your guide on "P2P synthesis from glycidate ethers", and I have a questions;
- Do you think I'll get good results with CAS 41232? - For hydrolysis, can I use 85% phosphoric acid instead of sulfuric or HCl?, How much phosphoric acid for 100g of BMK?
- Are layers generated during hydrolysis? At what points?

I would be very grateful if you could help me decide whether to do it or not.

Thanks
 

G.Patton

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Hello, 41232-97-7 is also BMK glycidate, so that synthesis the same, man.
 
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Aisabelcosta

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Ok, I've read it again and I'm wrong, the only previous step is to dissolve KOH in water and let it cool to room temperature. From here it is equal to 5449, is that correct?
 
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G.Patton

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Dear @Aisabelcosta , I already answered you, that you as about ethyl glycidate ester. There is clearly said in tutorial:
I really don't understand what is a problem do you have now.
 

should

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Hello sir, can mercury nitrate in the subsequent synthesis of aluminum mercury be replaced by mercury iodide or mercury sulfate?
 

G.Patton

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No. It can't. Mercury sulphate is very toxic substance and unpleasant for handling.
 
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