Potential (Stranger)
07-07-03 10:13
No 445260
      Distilling the freebase  Bookmark   

I have been researching some procedures that I would like to dream up soon and, once again, just when I thought things were clear as glass, something comes up...
Once I have my ketone, I am interested in pursuing Methyl Man's Al/hg.  Now, I understand the process but I have recently stumbled across some posts touting the benefits of distilling the freebase.  Am I going crazy or does Methyl Man's writeup not include a distillation of the freebase?  I see at the end of the procedure he calls for a recrystallization of "raw odoriferous product" but I saw a post from Rhodium that stated both freebase distillation as well as recrystallization should be done.  Is recrystallization the only method Methyl Man uses to obtain a pure product?  Can an A/B & a distillation be done on the xylene after it has been washed and dried?
I am very interested in getting the purest product possible...I have chosen not to skimp on chems or equipment.  If anyone could help me out, that'd be greatly appreciated...

"Homercules cares not for beans!"             -Homer Simpson
 
 
 
 
    nitrous351
(Hive Bee)
07-07-03 10:52
No 445265
      distill  Bookmark   

I can't remember off the top of my head if MM distills his freebase or not, but if you want the purest product possible, do a distillation. It might cost you a few hours, but it's worth it.

D.A.R.E. = Drugs Are Really Exciting
 
 
 
 
    OcoteaCymbarum
(Stranger)
07-07-03 10:56
No 445266
      MM doesnt distill  Bookmark   

But I would advise you do.
The minimum is a complete A/B, read the post from MaDMAx on the newbee forum.

After the A/B then you distill to get the freebase.

This is where I feel MM has left some pieces out because in his write-up, he doesnt even do an A/B, just cleans the xylene or toluene, meaning that anything soluble in the np will stay with the freebase as impurities.
 
 
 
 
    Potential
(Stranger)
07-07-03 12:29
No 445291
      When to distill...  Bookmark   

Good, that's the conclusion I have come to also...and the few hours extra for a difference you can feel in the end product sounds like a good trade to me!

So, at what point after the amination should one distill?  Once the xylene is washed and dried?

"Homercules cares not for beans!"             -Homer Simpson
 
 
 
 
    hCiLdOdUeDn
(Hive Addict)
07-07-03 15:26
No 445338
      First A/B it  Bookmark   

First, A/B it. This will remove any unreacted MDP2P or anything that is not an amine. Then distill the freebase.
 
 
 
 
    Rhodium
(Chief Bee)
07-13-03 15:14
No 446904
      Request for help  Bookmark   

Can somebody please help me write an addendum to the MM method with a proper description of a A/B + distillation workup, and I'll add it to the document at my page.