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

 

[stevepreston]

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.

 

[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.

 

[stevepreston]

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]

Ask the experts for an answer because I have failed and spent a lot of money and materials.
Bahasa Indonesia:For this distillation stage, what is needed for the next process?
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

 

[Pinkbay]

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