Buchi Rotavapor R II, Руководство по эксплуатации

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4 Description of function
22
R II Operation Manual, Version E
a
Evaporation area
The solvent is heated by means of a heating bath. A thin solvent film forms on the inside of the
rotating evaporating flask, resulting in an increased evaporation rate. The rotations also lead to an
even mixing of the sample thus preventing stationary overheating in the flask.
b
Rotation drive including vapor duct
The drive unit ensures that the evaporating flask rotates evenly.
The integrated vapor duct transports the vapor from the evaporation area to the cooling area.
c
Cooling area
The solvent vapor flows very quickly into the condenser. Here, the energy in the solvent vapor is
transferred to the cooling medium (mostly water), so that the solvent condenses.
d
Receiving flask
The receiving flask collects the condensed solvent.
Vacuum
The vacuum reduces the boiling temperature and thus increases the distillation performance.
The evaporating performance is influenced by the distillation pressure (vacuum), the heating bath
temperature, and the rotation speed and size of the evaporating flask.
For information on the optimum distillation conditions, see chapter Operation.