Zinc sulfide is an inorganic compound with the chemical formula ZnS. It mainly occurs in the minerals sphalerite and wurtzite. Both sphalerite and wurtzite are intrinsic, wide-band gap semiconductors. Zinc sulfide is transparent and white in color. It is usually produced from waste materials, and it is also a by-product of ammonia synthesis using methane.
Applications of Zinc sulfide
1.Zinc sulfide is not soluble in water, soluble in acid. See sunshine color darker. Long moist air transit into zinc sulfate. Generally by hydrogen sulfide and zinc salt solution. If the crystal ZnS adding trace amounts of Cu, Mn and Ag administered as activator, light, can make different color fluorescent. Used for analysis reagent, paint, paint, white and opaque glass, rubber, plastic, filling and for the preparation of phosphors.
2.Zinc sulfide is a white powder. It has good chemical stability and alkali resistance, and emits hydrogen sulfide when met with acid. Can be used as white pigment.
3. Zinc sulfide pigment Mohs hardness is low, soft texture, processing of the machine metal wear less, greatly prolong the service life of the processing machinery.
4. As a white pigment, it shows a bright hue, equivalent to about 60% of the whitening capacity of titanium dioxide. With ZnS as flame retardant, the amount of titanium dioxide can be saved, and it is non-toxic.
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