2 performing distillation, Danger, Warning – BUCHI Rotavapo R-100 User Manual
Page 32: Caution
6 | Operation
BÜCHI Labortechnik AG
32/60
Operation Manual Rotavapor® R100
6.2
Performing distillation
DANGER
Risk of poisoning from inhalation of hazardous vapors
u
Do not inhale any vapors produced during distillation.
u
Ensure that vapors are removed immediately by a suitable fume hood.
u
Only use the device in well ventilated areas.
u
If vapors escape from joints or connections, check the seals concerned and re
place them if necessary.
u
Do not distill any unknown fluids.
u
Observe the safety data sheets for all fluids used.
DANGER
Explosion risk from distillation of hazardous materials
u
Do not distill solvents that produce explosive mixtures of gases.
u
Make sure that there is always a sluggishly reactive atmosphere inside the system.
u
Discharge any electrostatic charge by suitable grounding arrangements.
u
Keep sources of ignition away from the apparatus.
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 internal pressure inside the glass components is never greater
than atmospheric pressure.
CAUTION
Risk of skin burns from hot components
u
Do not touch hot components unless wearing suitable protective gloves.
To achieve optimum distillation results, the following procedure is recommended:
u
Adjust the flow rate of the coolant to suit the type of coolant and the cooling capac
ity. If tap water is used, the flow rate should be at least 40 L/h.
u
Make sure that the coolant temperature is not more than 20 °C.
u
u
Make sure that the receiving flask is fitted.
u
Close the glass stopcock.
u
Switch on the rotary drive unit and adjust the rotation speed if necessary.
u
Set the vacuum so that the boiling point of the solvent is 20 °C below the tempera
ture of the heating bath.