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All 4 posts   Subject: lazy mans qiestion   Please login to post   Down

 
    psytech
(Hive Bee)
11-06-04 00:56
No 539937
      lazy mans qiestion     

Why in methylamine synthesis do you need to remove ammonium chloride? Why cant you just leave it in, boil away the water and extract with alcohol?
 
 
 
 
    ApprenticeCook
(Hive Addict)
11-06-04 04:29
No 539980
      filtration is easy...     

filtration is easy...

and the methylamine salt is also soluble in alcohol so you would extract your product along with the ammonium chloride.

Filtration of the solid from the freebase amine solution is easier and more effective to remove the excess.

-AC

Its just my opinion, but no-one listens to me anyway, and rightly so...
 
 
 
 
    psytech
(Hive Bee)
11-06-04 07:41
No 539999
      tx     

but the methylamine is not freebase its hcl. I just want to know if it interferes with meam formation
 
 
 
 
    Rhodium
(Chief Bee)
11-06-04 08:34
No 540004
User Picture 
      I just want to know if it interferes with meam     

I just want to know if it interferes with meam formation

It interferes with the MeNH2·HCl crystallization, as the NH4Cl precipitate is so voluminous - you will just have a large semi-solid goo which spatters stuff all around if trying to concentrate that as far as you need to for a decent yield.

The Hive - Clandestine Chemists Without Borders
 
 

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