The synthesis of new compounds based on the Bi2O3–Ho2O3 system, which can be used as new ecological inorganic
pigments, is investigated in our laboratory. The optimum conditions for the
syntheses of these compounds have been followed by the methods of thermal
analysis that can provide first information about the temperature region of
the pigment formation. The synthesis of these compounds was followed by thermal
analysis using STA 449/C Jupiter (Netzsch, Germany).