Tube-based Vacuum Sublimation System

Our Tube-based Vacuum Sublimation Systems provide the means to purify organic volatile compounds by vacuum sublimation, both for sublimable and liquid phase compounds. This technology has been designed for application in organic opto-electronics (e.g. OLEDs, organic photovoltaics) but is also used in other areas demanding ultra-high purities such as nanotechnology, fine chemistry or pharmaceutical research. The DSU-05 and DSU-20 have (nominal) maximum capacities of 5 g and 20 g, respectively, which are, however, strongly dependent on the material properties like density, sublimation/melting behavior etc. Both systems feature a three zone gradient oven. It allows not only for setting the precise temperature of the tube, but also for setting the temperature gradient, which can span over > 200 K between evaporation and deposition zones. The latter is crucial to control the fractional re-condensation and, thus, the separation of the different constituents of the primary material. Our DSU systems are highly modular to allow a flexible approach to each material.