solvent
purification system
We
have set up a solid state solvent purification
system in our laboratory. This system (by glass contour)
has proven to be much safer over conventional
distillation apparatuses. It will complement our
efforts to handle highly reactive species under
very careful conditions. The solvent dispensing
system provides common solvents such as acetonitrile,
THF, ether, toluene, pentane, and methylenechloride
air- and water free. The solvents are stored in
fire-proof cabinets in stainless-steel reservoirs,
pressurized with ultra-pure argon, and passed
through two sequential columns to remove any water
and trace impurities as well as oxygen. The system
is equipped with a cross-diffusion prevention
between the solvents and a vacuum transfer device
for refilling the solvent kegs without pouring.
The solvent lines are plumbed directly into the
glove-box, which allows to collect solvents at
a "filling station" inside the boxes
as well as at the stand.
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