Cold Finger Immersion Cold Trap Made of Borosilicate

The Cold Finger Immersion Cold Trap is a borosilicate laboratory component designed to provide a cooled internal surface where compatible vapors can condense. Cold-finger geometry is commonly incorporated into vacuum and distillation apparatus when trapping condensable vapor before it reaches downstream equipment is useful.

Cooling performance depends on the coolant used, temperature difference, vapor composition, vapor load, surface area, flow conditions, and complete apparatus. A Cold Finger Immersion Cold Trap can assist condensation, but it should not be assumed to capture every vapor or guarantee a particular solvent-recovery percentage. The cooling medium and operating temperature must be appropriate for the glassware and process.

When incorporated into a reduced-pressure system, evaluate the entire apparatus rather than the trap alone. Pump characteristics, tubing, seals, valves, connected vessels, and operating procedure all affect system performance. No specific vacuum or pressure rating should be assumed unless separately documented.

Inspect the cold finger, outer glass body, and connection areas before every use. Chips, cracks, deep scratches, impact damage, or damaged joints are reasons to remove the trap from service. Avoid inappropriate thermal shock when adding or removing cooling media, and use appropriate protective equipment when handling very cold materials. Support connected glassware so tubing or adapters do not place unnecessary mechanical stress on the trap.

The Cold Finger Immersion Cold Trap provides a borosilicate condensation surface for compatible laboratory assemblies. Browse related vacuum and distillation components in our Borosilicate Glass Laboratory Equipment collection.