Condenser, Micro Cold Finger

Condenser for use in refluxing from 1 to 20mL of solvent in flasks having a capacity of 5 to 50mL. Minimal surface area provides for better yields while providing adequate cooling. The additional hose connection is provided to allow introduction of an inert gas such as nitrogen. Top hose connection is cooling inlet and middle hose connection is cooling outlet. Cold finger extends either 5mm or 13mm below the joint and is used on a flask with the listed joint size. Hose connection is 10mm at the largest serration. ** Design suggested by Dr. Kathleen Zandi, Pfizer Inc., Groton CT.