BÜCHI Labortechnik AG
Operation | 6
Operation Manual Rotavapor® R-100
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6.2.3
Optimization distillation
Depending on the solvent involved, it may also be possible to further optimize the dis-
tillation process. The distillation should always be set up so that the condensate does
not cover more than three quarters of the coil in the condenser. There should be no
condensate visible in the top quarter.
¾
WARNING
Risk of explosion from excessive internal pressure
The evaporating flask and/or the condenser could explode if the internal pressure pro-
duced by evaporation becomes too great.
u
Make sure that the pressure in the system is never greater than atmospheric pres-
sure.
If the condensation is below 3/4 of the condenser:
u
increase the vacuum.
That will lower the boiling point and more vapor will enter the condenser.
u
In applications where no vacuum is applied, raise the temperature of the heating
bath if necessary.
That will cause more solvent to evaporate.
If the condensation is above 3/4 of the condenser:
u
decrease the vacuum.
That will raise the boiling point and less vapor will enter the condenser.
Summary of Contents for Rotavapor R-100
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