Sinteza metamfetamina iz efedrina z uporabo I2 in H3PO2

caydiantak

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ali to deluje s psevdo?
 

Toti

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Pozdravljeni, ali je kakšna razlika, če v tem receptu uporabim sudoefedrin ?
Hvala.
 

Throw-off

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Različna razmerja za efedrin in psevdo.
 

ZMI_AA0B

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Lahko vprašam, katera nepolarna topila se lahko uporabijo za ekstrakcijo metamfetamina
 

hacke8

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Da, uporabljate lahko tudi toluen, benzen in ksilen. Ne bodo destilirani s topilom, ker je njihovo vrelišče višje od vrelišča. Plinski vodikov klorid lahko po sušenju vnesete neposredno, ne da bi nanj vplivali.
 
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hacke8

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Po končani ekstrakciji obdržite raztopino toluena in ji dodajte natrijev sulfat, da se posuši. Prefiltrirajte, nato v raztopino spustite plinski vodikov klorid in bel prah je vaš izdelek.
 

ZMI_AA0B

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Učitelj, ali vam ni treba uporabljati petrol etra
 

ZMI_AA0B

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Učitelj, kako se ti praški spremenijo v kristale
 

hacke8

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Uporabite lahko petrolejski eter, to je odvisno od vašega urnika, prah pa se rekristalizira v led. Pri tem se lahko sklicujete na temo ICE.
 

JJ237

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Ali mi lahko, prosim, pokažete to ledeno temo. Še vedno imam težave pri rekristalizaciji svojega metamfetamina v led
 

ZMI_AA0B

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Pravkar se je zgodila čarobna stvar. Po sušenju raztopine toluena je bil uveden vodikov klorid, pri čemer je ostalo manj kot 0,5 grama prahu. Ko pa sem filtriral prvotno raztopino, se je ta spremenila nazaj v psevdoefedrin
 

ZMI_AA0B

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Po segrevanju in refluksiranju najprej dodajte 20 ml vode, nato prilagodite pH vrednost alkalije na vrednost nad 10, nato dodajte natrijev tiosulfat, nato pa za ekstrakcijo namesto dcm uporabite toluen. Ali je v teh postopkih trenutno kakšna napaka?
 

hacke8

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Če je vse pravilno v skladu s postopkom, je bel prah vaš izdelek.
 

ZMI_AA0B

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Ali obstaja hitrejši način za kristalizacijo, učitelj
 

hacke8

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Ne, čim počasnejša je kristalizacija, tem večja je. Rekristalizacija je nujna. Da bi dobili velik kristal, morate biti potrpežljivi.
 

situ1988

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Ali je številka CAS hipofosforne kisline: 7664-38-2 pravilna?
 

darkskin

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Odlična obdelava, hvala za delitev. Been narediti to vrsto redukcije dvakrat, najprej točno tako kot writeup efedrin firs sledi h3po2 nato jod in njegova res intenzivna reakcija. Refluks je trajal 6 ur in dosegel le 33 % izkoristek.
Drugi način je, da najprej naredim hi v vreli bučki z mešanjem joda s h3po2 v hladnem stanju. nato vlijem efedrin, tako reakcija ni tako intenzivna kot prva, refluks traja približno 8 ur in dobim približno 51 % izkoristek
 

Jumin

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Pozdravljeni, želim vedeti, kako lahko rekristaliziramo ta prah, ki ga dobimo na koncu postopka? Ali mi lahko kdo razloži, prosim??
 

JJ237

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Kako pretvorimo metamfetamin v prahu v kristale ledu ali črepinje
 

$!$

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Benzil alkohol
 

JJ237

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Ali prašek raztopim v alkoholu?
 

$!$

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Voda kislina in alkohol
 

otw247

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Kaj bi se zgodilo, če bi s to metodo uporabili efedrin na osnovi L-PAC?
 
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