Author: Jan Scholten
Cadmium sulphuratum is the best known of all the Cadmium compounds. We have to make a subtle difference between Cadmium sulphuricum or Cadmium sulphate. Boericke gives us a description of Cadmium sulphuricum but this is probably a mistake because both Allen (Vol. 2, page 330) and Clarke (Vol. 1, page 328) are clearly talking about Cadmium sulphuratum.
Cadmiumsulphide is a semiprecious stone with a yellow or red colour and it is called greenockite.
It is used as a yellow or red colouring agent.