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My one question is also after poured benzene and seperation upper layer is meph or bottom layer is meph. Which layer is use for next process

Sorry sir for directly message Actually I synthesis of mephedrone hydrobromide. All process i done last process when liquid of mfd i kept in freezer from last 48 hr but meph not make dried and solid. When I filter them use of butchner funnel all liquid are same condition. There no solid form...

I completed synthesis procedure of mefedrone but from last 20 hr my liquid is not make solid form Only oil base seen How i seperate oil base from my liquid

I completed synthesis procedure but from last 2 days I kept liquid in freezer Liquid is not dried and same as in liquid condition Now what can I do

I Ipa =30 water 70 %

I make 100 gm solid powder After that I pour into 108 ml IPA and 80 ml water and boil it but more than 14 still no crystal make

In video the quantity of IPA is 30 percent and in water is 70percent But in synthesis procedure ipa is 70 and water is 30

How much require in 300gm mefedrone Isopropyl alcohol Water Quantity for make crystal