Tech Team · Kintek Solution

Using a rotary evaporator involves a series of precise steps to ensure efficient and safe operation. Here’s a detailed breakdown of the process:

19 Steps to Master Rotary Evaporator Use

Setting Up the Rotary Evaporator

1. Set up the rotary evaporator by placing it on a stable and level surface.

2. Connect the water circulation system (chiller or cold water bath) to the condenser and ensure a constant flow of cooling water.

3. Connect the vacuum pump to the rotary evaporator and ensure proper sealing.

4. Attach the round-bottom flask containing the solution to be distilled to the rotary evaporator's main body.

5. Attach the evaporating flask (also known as the "boiling flask") to the rotovap's vapor duct.

6. Connect the condenser to the vapor duct.

Operating the Rotary Evaporator

7. Turn on the vacuum pump and gradually decrease the pressure inside the system.

8. Set the water bath at the desired temperature.

9. Fill the evaporating flask with the solution/mixture to be evaporated.

10. Fix the flask to the evaporator's bump trap and seal it with a clip.

11. Adjust the flask position and partially immerse it into the water bath using the joystick knob.

12. Switch on the rotation and set it at your preferred speed using the rotation notch.

13. Close the stopcock on the evaporator to prevent vigorous boiling.

14. Allow the solution to evaporate.

Completing the Process

15. After the evaporation is complete, raise the evaporating flask out of the water bath.

16. Open the stopcock to release the pressure.

17. Remove the evaporating flask to collect the residue and the distillate from the receiving flask.

18. Switch off the vacuum pump, condenser, and water bath.

19. Remove the round-bottom flask from the rotary evaporator.

Key Tips for Successful Operation

• Pay attention to the rotation rate and ensure the flask is rotated moderately, preferably one-third of the maximum allowable value.

• Follow the correct procedure and safety precautions to ensure successful and safe operation of the rotary evaporator.

Continue exploring, consult our experts

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