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Cooling trap cover for liquid nitrogen dewar
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A cover for a cooling trap dewar to avoid the evaporation of liquid nitrogen
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Model information
- Source
- Printables
- Category
- Chemistry & Biology
- License
- Creative Commons — Attribution — Share Alike
This is a cover for avoiding the evaporation of liquid nitrogen from a cooling trap dewar. It was especially designed for Isotherm dewar models 13C, 14C and 15C with an inner diameter of 90 mm. The middle hole for the cooling trap has a diameter of 55 mm. The cover consists of two parts making the refill of nitrogen easy.
Note that PLA, PETG, ABS, TPU and many other filaments have no or only low resistance against organic solvents used in a chemical laboratory. Avoid the contact with those.