Sublimation apparatus is used for purification by sublimation of quantities of about 0,5 to 500 mg under vacuum.

Consists of a cylindrical, flat bottomed flask for sample and a water-cooled finger type condenser. The condenser has an outer short skirt with a 24/25 outer joint to fit over the neck of the flask. Above the joint there is a side hose connection for attachment to a source of vacuum.