Purification by sublimation is a method for purifying a raw material containing impurities through the use of differences in the sublimation and deposition temperatures of different substances. Purification by sublimation is used for high purification of organic electronic materials used in organic semiconductors, OEL, and similar applications. Amounts from several grams to 1 kg can be processed per batch, allowing monthly production up to several tens of kilograms. By request, we can also accommodate projects involving even greater amounts. For problems such as your samples failing to show electronic properties despite high purity (by chemical analyses), we can be of help.