1. The glass reaction kettle is not strong and fragile;

2. The reaction kettle is not pressure resistant, and the high-pressure reaction cannot be used;

3. In high-temperature reaction, the thermal insulation performance is poor. Although thermal insulation materials can be bound to the glass reactor, there are still defects in higher temperature thermal insulation. The same is true in low temperature reactions.

Use and maintenance of double glass reaction kettle:

1. Whether the glass is damaged, whether the interface is consistent, and handle it gently;

2. All interfaces should be consistent, and vacuum grease can be applied appropriately; The interface should not be too tight, and it should be loosened regularly;

3. The Teflon switch cannot be tightened too hard;

4. Clean the reaction kettle and sealing ring regularly;

5. It is best to use the original configuration of accessories.