26
BÜCHI
Rotavapor
R-200/205
When distillation «dies out»
Replace the receiving flask, to eliminate the risk of back evapo-
rating. Then, continue distillation. Repeat this process until all
desired solvent is distilled off.
At the end of distillation, start rotation, pull up the flask and
vent the system.
Turn off the heating bath to save energy, if you do not intend
to immediately perform another distillation.
5 Operation
