Methamphetamine Synthesis from Ephedrine by Using I2 and H3PO2

hacke8

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Gentlemen, I did this experiment, and I heated it to 125 degrees, because phosphoric acid is heated to 130 degrees, there will be phosphate hydrogen gas (toxic). Is there any way to avoid these?
 
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does this work with pseudo?
 

Toti

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Hi is there any difference if i use sudoephedrine in this recepe ?
Thank you
 

amieri

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You want a molar equivalent , these are hypothetical amounts, but say the the 6g of ephedrine is 20mmol of one mol of ephedrine then you'd want 20mmol equivalent of pseudo.im by no mean a pro and have never even looked up the molecular weight of either of them put that's the idea .
There's a post on here somewhere I believe from patten that is very detailed and informative about the subject definitely look it up because this is something that is very important in all reactions.
Sincerely B

!MAKE AMERICA COOK AGAIN!
 

kackbratze

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hello, i have a question: instead of Iodine could Potassium Iodine beeing used? Becaus Potassium Idodine is purchased much more easily.
 

G.Patton

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Hello, no. These substances has different chemical properties.
 

CARLITOBRO

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can i use hydriodic acid 57% instead of hypophosphorus acid ? please replay
 

Bmth

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Meminta Mohon dijawab para ahli karena saya sudah gagal dan menghabiskan banyak biaya dan bahan
Bahasa Indonesia:Untuk tahap distilasi ini, apa saja yang dibutuhkan untuk proses selanjutnya?
Bahasa Indonesia:Whether the result of the distillation steam, or the rest of the material that is heatedWhether the result of the distillation steam, or the rest of the material that is heated 🙏
 

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Pinkbay

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Teacher, can I use DCM instead without distillation and go directly into the overweight hydrogen chloride?
 

William Dampier

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You can do this, but it is better to extract into the water layer when acidification and evaporate part of the water. You can use aq. HCl
 
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Hello, please can you give the weights that can be followed with the steps to get one kilogram ?🙏
 

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You must control the boiling to avoid problems with the volcano. Use boiling chips. Change the weight you need according to the specified proportions.
 

cicici

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Hello, I have a question
I got a good result through this work
I have a few questions
1. It was heated to 100 degrees in hypophosphoric acid + ephedrine + iodine
There was a weight loss for the result. Would 110 degrees be okay?
2. Is it okay to calculate the capacity twice or three times for the mass production process and run the process? If so, how should we calculate the temperature and time of the reflux cooler?
3. I'm most curious about the process for number two. Simply put, if you start with six grams of ephedrine, if you put two or three times the dose in every process and manufacture it
I wonder what the temperature and time of the reflux cooler should be
4. The process of reflux cooler refers to the process in hypophosphoric acid + ephedrine + iodine
 

GhostChemist

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The temperature can be 110 but longer in time
In this synthesis, phosphine is formed, therefore, an increase in the volume without ventilation hood is unsafe
 

cicici

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Thank you for your answer
1. If you increase the volume, how much volume is appropriate?
2. If you increase the volume, how should you determine the time and temperature?
3. Why does it take longer than 100 degrees if you proceed to 110 degrees?
4.What is the appropriate temperature in your opinion?
 

kafka82

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I am newbie - is there a video of this detailing the process? Also particualrly concerned about the best type equipment to procure fo rmagnetic heater and the reflux for example...
 

@speedboysss

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