Methamphetamine Synthesis from Ephedrine by Using I2 and H3PO2

[hacke8]

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?

 

[GhostChemist]

you can use the absorption of PH3 with NaClO and NaOH
H3PO2 destroyed at 170 C

 

[CARLITOBRO]

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

 

[caydiantak]

does this work with pseudo?

 

[Toti]

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

 

[Throw-off]

Different ratios for ephedrine and pseudo.

 

[amieri]

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]

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

 

[G.Patton]

Hello, no. These substances has different chemical properties.

 

[Throw-off]

You can use pottasium iodine to make iodine. It can be done in a lazy Sunday afternoon.

 

[CARLITOBRO]

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

 

[G.Patton]

Hello, no, you neither can use hydroiodic acid, nor phosphorous acid

 

[Bmth]

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

 

[William D.]

Your photo has a very high distillation temperature for dcm

 

[Pinkbay]

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

 

[William D.]

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

 

[Saâd]

Hello, please can you give the weights that can be followed with the steps to get one kilogram ?