FriendlyFinger (Hive Bee)
04-17-03 05:14
No 427474
      How come my seemingly clear/white MeNH2 turns...  Bookmark   

How come my seemingly clear/white MeNH2 turns my Butanol yellow even after 2 recrystallisations? What is this stuff? I used a mantle to get it up to boiling.

When I heated a sample of the same 2x recrystallised MeNH2 with Butanol at between 90-100 as per Organic synthesis, there was no colour at all. So why does it turn yellow at higher temps?

Thanks,
FF
 
 
 
 
    Rhodium
(Chief Bee)
04-18-03 05:02
No 427717
      Simple thermal decomposition when you heat the  Bookmark   

Simple thermal decomposition when you heat the solution to a higher temperature than specified in the instructions?
 
 
 
 
    FriendlyFinger
(Hive Bee)
04-18-03 08:04
No 427746
      OK. That means I should be using an oil bath...  Bookmark   

OK. That means I should be using an oil bath instead of the mantle to boil the butanol. Hope the rest of my MeNH2 is still ok.

Thanks,
FF