UTILIZATION OF DERIVATOGRAPH FOR STUDY OF SYNTHESIS OF NEW INORGANIC PIGMENTS

In our laboratory, the synthesis of new inorganic pigments is followed by thermal analysis using a Derivatograph apparatus. The first inform ation about the temperature region of the formation of the pigments in vestigated is provided by thermal analysis. The main attention is di r ected to the preparation of high-temperature colour pigments, lightfas tness colour pigments, anticorrosive pigments, new ecological inorgani c pigments and luminescent pigments. All inorganic pigments are useful for colouring of ceramic glazes, enamels, plastics, paints, cements a nd other building systems. The synthesis of all these pigments is base d on temperature calcination of starting materials. Tens of new inorga nic pigments have been prepared thanks to methods of thermal analysis. These synthesis are described in more than 100 Czech patents.