Cadmium sulfide

Cadmium sulfide (CAS 1306-23-6), commercially recognized as Cadmium Yellow and historically marketed as Capsebon, is an inorganic pigment delivering intense yellow-to-orange hues. It offers exceptional heat and chemical stability for demanding industrial uses. This material is used across high-performance coloring applications where organic pigments cannot withstand harsh processing conditions. In plastics and polymer compounding, it provides stable coloration in engineering resins processed at elevated temperatures.

Most organic colorants degrade under these conditions, making this inorganic compound essential for high-heat manufacturing. Coatings formulators specify it for industrial and protective finishes requiring long-term color retention. The pigment maintains its integrity under intense UV exposure and harsh chemical environments. In the electronics sector, it functions as a photoconductive material in photoresistors and thin-film semiconductor layers.

Printing inks for specialty packaging have historically used it where opacity and color fastness are required. It is particularly effective under demanding print conditions that would compromise the quality of lesser pigments. The product is supplied as a fine powder in pigment-grade and technical-grade forms. Pigment grades are characterized by particle size distribution and tinting strength to meet specific industrial colorant standards.

Purity levels are typically specified to ensure consistency across large production batches. Buyers sourcing for regulated applications should confirm compliance with relevant heavy metal restrictions applicable in their target market.