soma - 23-3-2018 at 03:18
I've got some n-acetylcysteine amide that was recrystalized from ethanol. I want to dry it but it's sensitive to air and heat. I was thinking of using
a vacuum dessicator and maybe filling it with nitrogen. I'm wondering what the best dessicant would be. Also wondered if molecular sieve 4A would be
good.
Sulaiman - 23-3-2018 at 03:45
If you put the wet product into a vacuum dessicator why would you need nitrogen ?
ethanol would form the majority of the atmosphere.
Even for open drying by evaporation into the air, in a beaker,
I would expect the denser ethanol vapour (1.6x air) to blanket the product -mostly.