The cold finger reflux condenser is a laboratory glassware used to generate a localized cold surface on the exterior of the immersion “finger”,regulate refluxing by adjusting the flow of air or water through it.Usually a cold finger is used in sublimation apparatus,reflux reaction or distillation apparatus.
Designed with an inner joint and a sealed lower drip for drip control at the end of the finger tuing,which used as a chamber that a coolant fluid can enter and leave.
With two hose connections for coolant liquid in and out.
Made of high quality borosilicate glass 3.3 having very low?coefficients of thermal expansion for resistance to heat, and a very high resistance to chemical attack.Annealed at 800 degree Celsius ,can be heated directly in an open flame and can withstand typical laboratory thermal variations in Chemistry processes like heating and cooling.