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.
Zinc sulfide finds applications in the following:
- It is commonly used as a white pigment
- Detector of alpha-rays, which render it luminescent
- Infrared optics
- It is used as phosphor in several applications, including X-ray screens and cathode ray tubes.
The chemical properties of zinc sulfide are provided in the table below:
||Zinc – 12
Sulfur - 16
The electrical properties of zinc sulfide are provided in the table below:
Thermal, Mechanical and Optical Properties
The thermal, mechanical and optical properties of zinc sulfide are provided in the tables below:
|Heat of Fusion
|Heat of Formation
|Thermal Expansion Coefficient
|Specific Heat Capacity
|Modulus of Elasticity
|GHS Hazard Statements
||H314 - Causes skin irritation
H319 - Causes eye irritation
H331 - Harmful if inhaled.
||P210 - Keep away from heat/sparks/open flames/hot surfaces – No smoking
P233 - Keep container tightly closed
P262 - Do not get in eyes, on skin, or on clothing
P281 - Use personal protective equipment as required
P309+311: IF exposed or you feel unwell: Call a POISON CENTER or doctor/physician.