Cadmium Sulfide
Chemistry
|
Volatiles
|
Hazards
- Cadmium
Miscellaneous
- Family: Flux Source
- Region: None
- Mined At: Unspecified
- Raw Mineral: No
- Generic: No
Notes
It is practically insoluble in water but soluble in ammonium hydroxide and acids. The material occurs as the mineral greenockite, which is recovered as a byproduct of the refining of zinc ores. It is oxidized to the sulfate and then reprecipitated as chemically pure cadmium sulfide by hydrogen sulfide.
Cadmium sulfide is a important source of both cadmium and sulfur. They complement each other in producing yellow and red colors in enamels and glasses. Often, selenium is used in the compounds.
Since this material does not contain CdO in the raw state, the only way it can source CdO to a glass is to pick it up externally. The percentage CdO shown here compensates so that the conversion factor will be correct in calculations.
Suppliers
- Generic
Authors
- Tony Hansen (Owner)
XML
<?xml version="1.0" encoding="UTF-8"?>
<material name="Cadmium Sulfide" descrip="" generic="0" rawmineral="0" searchkey="Greenockite, CdS" loi="0.00">
<families>
<family name="Flux Source"/>
</families>
<oxides>
<oxide symbol="CdO" name="Cadmium Oxide" status="" percent="88.850" tolerance=""/>
</oxides>
<volatiles>
<volatile symbol="" name="" percent="11.140" tolerance=""/>
</volatiles>
<hazards>
<hazard name="Cadmium"/>
</hazards>
<suppliers>
<supplier name="Generic" country="" url="" label=""/>
</suppliers>
<notes>
<note>It is practically insoluble in water but soluble in ammonium hydroxide and acids. The material occurs as the mineral greenockite, which is recovered as a byproduct of the refining of zinc ores. It is oxidized to the sulfate and then reprecipitated as chemically pure cadmium sulfide by hydrogen sulfide.
Cadmium sulfide is a important source of both cadmium and sulfur. They complement each other in producing yellow and red colors in enamels and glasses. Often, selenium is used in the compounds.
Since this material does not contain CdO in the raw state, the only way it can source CdO to a glass is to pick it up externally. The percentage CdO shown here compensates so that the conversion factor will be correct in calculations.</note>
</notes>
</material>
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