Contrabasso - 26-3-2011 at 09:13
I've just come by some nitromethane - it's a part full Aldrich bottle, not full 
However there are pellets in the bottom -lots of them. I'm hoping that they are for keeping it dry, but what would you think they are they look 2mm
dia 6 mm long cylinders that sound hard against the bottle and look grey. I'm wondering if they would likely be sodium metal or some kind of other
absorbant.
While I realise that you can't see the pellets, wise guesses would be appreciated, as would certain fact that "Aldrich always insert ..... into NM"
Picric-A - 26-3-2011 at 12:47
Most certainly from your description they are molecular sieves, used to keep the NM dry.
itchyfruit - 26-3-2011 at 12:49
Had a quick look on sigma's site and it appears that it is sold over 'molecular sieves' to keep H2O below 0.01%