The Composition and some Properties of Cadmium Sulfide Particles Formed in the Cd²⁺-S₂O₃^2- System

Abstract

Cadmium sulfide was obtained as precipitate from an aqueous solution of cadmium salt by adding sodium thiosulfate homogeneously. Aging of the precipitate at 95°C for five hours gave rise to reddish orange colored spherical particles of cadmium sulfide with the diameter between 5 to 15 μm. The grain size was decreased down to 2 pm by addition of ethanol during the precipitation reaction with the change in color into bright yellow. The spherical shape was kept up to 550°C in a nitrogen stream.