From: Richard M Thomas <rthomas@ifp.mat.ethz.ch>
  To  : RASMB@bbri.harvard.edu
  Date: Wed, 15 Jul 1998 13:59:40 +0200

TFE

Good afternoon everyone,
We've used 25% TFE (v/v in aqueous buffer) for overnight equilibrium runs
without any apparent damage to charcoal-filled epon or kelF centrepieces.
There may be long term effects of which I am not yet aware....)
However, beware - rho(TFE) is approximately 1.4, so you may run into
buoyancy problems at higher concentrations.
Hope this helps
Richard

Dr Richard M Thomas
Inst. für Polymere
ETH-Zentrum
CH-8092 Zürich
Switzerland
(tel) +41 1 632 5540
(fax) +41 1 632 1073