Cadmium Sulfide Powder / CdS Powder (CdS, Super Grade, 12um, 99.99%)
|Cadmium Sulfide Powder|
|APS||<12um (can be customized)|
|Melting Point||1,750 °C|
|Boiling Point||980 °C|
Cadmium sulfide Powder
It is the inorganic compound with the CdS formula. Cadmium sulfide is a yellow solid. It occurs in nature with two different crystalline structures like rare minerals: verdeockita and hawleyita but more widespread as a substitute for impurity in sphalerite and wurtzite zinc minerals of similar structure, which are the main economic sources of cadmium. As a compound that is easy to isolate and purify, it is the main source of cadmium for all commercial applications. It’s vivid led to its adoption as a pigment for the yellow “cadmium yellow” paint in the eighteenth century.
Cadmium sulfide can be prepared by precipitation from soluble salts of cadmium (II) sulfide ion. This reaction was used for gravimetric analysis and inorganic qualitative analysis.
The preparatory path and subsequent treatment of the product, influence the produced polymorphic form (ie cubic vs. hexagonal). It has been argued that the chemical precipitation methods determine the shape of the cubic zincblende.
pigment production generally involves precipitation of CdS, washing the precipitated solid to remove the soluble salts of cadmium, and then calcining (toasted) to convert it into hexagonal form and then ground to produce a powder. When cadmium sulfide selenides are required, the CdSe with CdS precipitates together and cadmium sulfoselenide is created during the calcination phase.
Cadmium sulfide is sometimes associated with bacteria that reduce sulfate.