I did this, the pink color on the cristalization os a byproducts, so i do the reaction at - 5, when Al dissolved i add naoh solt,extracted with toluene, add diluted HCl to the free base/toluene until pH 7, extracted the meth/ water w toluene ( pink color) until clear, add naoh solt to meth/ water,extracted w toluene, dry the freebase/ toluene w anhydrous sodium sulphate,filtered,then bubbled HCl gás until crystals, filtered,washed w acetona,the crystal was like the product on the tdc vídeo not big ice rocks, só i testes w mandelin/ marquis,the result was ok,só i try to eat 400mg then sniff 400mg then smoke 1g on little doses but i get no high,só i think this is DL meth maybe os too weak,só i do DL separation w d tartaric acid, works fine,só i do the same again test w mandelin/marquis, result was ok,só i eat 400mg,snorted 400mg,smouke 1g and still no high.the yield was 10.96g,but was scaled up reaction,do any One know a clue about what could be wrong.
I'm assuming his yield was low because he left the rest of his product in the supersaturated water layer that formed on the bottom of the beaker along with the salt.
A recrystallization has to be done to the powder to produce a cleaner crystal product.