Acc. to DIN 12257 and in addition to DIN standard, conical ground sockets and cones,
material: BOROSILICATE Glass 3.3

Here are potential uses for such adapters in a laboratory setting:

1. Thermal Expansion Experiments:
   • Expansion adapters may be used in experiments involving thermal expansion or contraction of materials. They can connect different glassware components with ground joints and accommodate changes in temperature.
2. Temperature-Dependent Reactions:
   • In chemical reactions where temperature changes are crucial, expansion adapters facilitate the connection between glassware components, allowing for controlled heating or cooling.
3. Distillation Setups:
   • Expansion adapters with ground joints can be employed in distillation setups where temperature changes occur. They help connect various components like the distillation flask and the condenser.
4. Thermometer Placement:
   • These adapters may provide a means to attach thermometers at different points within an experimental setup to monitor temperature variations during reactions or processes.
5. Thermal Cycling Experiments:
   • In experiments involving thermal cycling, where temperature changes are repeated, expansion adapters can help maintain a secure and leak-tight connection between components.
6. Heating Mantle Applications:
   • When using heating mantles or other heating devices, expansion adapters facilitate the connection between the reaction vessel and the heating source.
7. Fractional Distillation:
   • In fractional distillation experiments, where precise temperature control is essential, expansion adapters can connect different components while accommodating temperature-induced changes.
8. Condensation Reactions:
   • In reactions that involve condensation or vaporization, expansion adapters may be used to connect components such as the reaction flask and the condenser.
9. Glassware Compatibility:
   • When using glassware with different coefficients of thermal expansion, expansion adapters help bridge the gap and ensure compatibility between components.
10. Thermal Stress Testing:
    • Laboratories may use expansion adapters for stress testing glassware under different thermal conditions, assessing the stability and integrity of the materials.