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I I use the method is 100g bmk add 100g distrilled water and 100g HCI after that heat up to 80c reflux 3 hour. Is it ok?

Hi sir i am not understand item 2. And Sodium Triacetoxyborohydride can i replace to nabh4?

Yes i have

Hi sir what receipt you use?

Orite thanks

Sir i am facing the same problem.

I am facing the same problem

I mean if cant crystallize the meth oil cant use back right?

Sir If it cannot be crystallized, can I still use the oil to restore it?

Hi sir after evaporate dcm get the liquid colour like light yellow. Is it meth free base?

Hi

Alright thank you

After heating need keep it in freezer?

Noted with thanks

Is there any other way to solve it?

yes i directly into meth free base and i use 37.5% HCI. Thank you sir

Hi sir i would like to ask you. I am using HCL dropwise untill PH6 then heat the liquid 105 degrees and pour in to tray and keep in the freezer. But dont have crystall come out. What is the problem? Is there any other way to solve it? Thank you.

But i use HCL dropwise also cant get crystall out. Is it PH problem? Or my working step have problem?

Sir i would like to ask you. When i use HCI gas is it need use ice bath?

Sir this is the liquid colour after i finish all step. Is it right?