What is Zinc sulfide

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Submitted by admin on Mon, 11/26/2018 - 08:09

Zinc sulfide is a white to gray or light yellow powder. See the light color darken. It is stable in dry air and gradually oxidizes to zinc sulfate when it is exposed to humid air or contains moisture. Soluble in dilute mineral acid, soluble in alkali, insoluble in water.

Zinc sulfide is converted into crystals by burning in H2S gas. The α variant is a colorless hexagonal crystal with a density of 3.98 g/cm 3 , a melting point of 1700 ± 28 ° C (202.66 kPa - 20 atm); the β variant is a colorless cubic crystal with a density of 4.102 g/cm 3 and is converted to 1020 ° C. Alpha type. Present in sphalerite.

Zinc sulfide nanomaterials have attracted great attention not only because of their excellent physical properties, such as wide band gap, high refractive index, high transmittance in the visible range, but also their enormous potential for applications in optics, electronics and optoelectronics. 

Zinc sulfide has excellent fluorescence and electroluminescence functions. Nano Zinc sulfide has a unique photoelectric effect and exhibits many excellent properties in the fields of electricity, magnetism, optics, mechanics and catalysis. Therefore, the study of nano Zinc sulfide has caused More people pay more attention, especially in 1994, Bhargava reported that surface passivated nano-ZnS:Mn phosphors not only have an external quantum efficiency of up to 18% at high temperatures, but their fluorescence lifetime is shortened by five orders of magnitude, and luminescence The performance has changed a lot, and the application of  ZnS in materials has opened up a new way.

It can be used to make white pigments and glass, luminescent powder, rubber, plastic, luminescent paint, etc.