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Also how many ml of hci & acetone is need for bases. I understand we add until base is ph 5, but it acetone 250ml & hci 250ml ? Are is hci 350ml and acetone 150ml?

What does bicarbonate mean ? How do I bicarbonate . “perhaps not all of its precursor has reacted and there are some traces of impurities” If this is the case i would have to let dcm and presscor mix longer with 40% methylamine solution ?

Hey I’m having trouble getting my free base to turn clear , I’ve washed it several times using h20, still not clear / white . I’ve even used h20 and baking soda still not clear. can someone give me input . also I skipped the aqueous layer separation stage and I didn’t add any ethyl acetate...