BUCHI Rotavapo R-100 - Manual (Page 36)

6 | Operation BÜCHI Labortechnik AG
36/60 Operation Manual Rotavapor® R­100
u In applications where no vacuum is applied, lower the temperature of the heating
bath.
That will cause less solvent to evaporate.
6.2.4 Feeding solvent during distillation
Precondition:
R An external vacuum pump is connected and running.
R A feed tubing leading from the glass stopcock to the evaporating flask is fitted.
u Connect a supply tubing (2) for the solvent to the glass stopcock (1) and hold it in
the solvent.
u Turn the glass stopcock until the handle is pointing downwards.
Solvent is drawn into the evaporating flask by the vacuum.
u Make sure that there is not more than 3 kg of solvent in the evaporating flask.
u Close the glass stopcock.