Cadmium sulfide

Cadmium sulfide (CAS 1306-23-6) is an inorganic compound commercially known under trade names including Aurora Yellow, Cadmium Orange, Cadmium Golden 366, and C.P. Golden Yellow 55. It carries no assigned E-code and is classified within the pigments and colorants category for industrial supply.

In plastics and polymer processing, cadmium sulfide delivers stable yellow-to-orange coloration by absorbing specific wavelengths of visible light, maintaining hue integrity under high processing temperatures where organic pigments degrade. In electronics manufacturing, it functions as a semiconductor material in photoresistors and thin-film photovoltaic cells, where its bandgap properties enable light-dependent conductivity.

Cadmium sulfide is supplied as a fine crystalline powder in technical and pigment grades, subject to REACH regulation (EC 215-147-8) given cadmium's classification as a substance of very high concern. Procurement teams should confirm compliance with RoHS and relevant end-use restrictions before specifying this material. Packaging formats vary by supplier and order volume.