Sublimation apparatus
![Simple sublimation apparatus. Water usually cold, is circulated in cold finger to allow the desired compound to be deposited.1 Cooling water in 2 Cooling water out 3 Vacuum/gas line 4 Sublimation chamber 5 Sublimed compound 6 Crude material 7 External heating](/Images/godic/202502/13/Sublimation_apparatus.svg2108.png")
![](/Images/godic/202502/13/Camphor_sublimation_12108.jpg")
![](/Images/godic/202502/13/Cp2NiSublimate2108.jpg")
Sublimation apparatus is equipment, commonly laboratory glassware, for purification of compounds by selective sublimation. In principle, the operation resembles purification by distillation, except that the products do not pass through a liquid phase.