Zinc Sulfide
ZnS : Zinc sulfide is a solid, white in appearance, used as a semiconductor.
Specifications
| Shape | Color | Purity | Package | Storage | ||
|---|---|---|---|---|---|---|
| Sinter | Tablet | 10x6 mm 20x15 mm 30x17 mm | White to light yellow | 99.9% 99.99% | 1 Kg/Bag | Avoid exposure to sunlight & acid Keep dry |
| Cuboid piece | 80x45x30 mm | |||||
| Granule | 1-40 mm | |||||
| Crystal | Granule | 11-40 mm Upon demand | Light yellow, semitransparent | 99.99% | ||
| Cutting piece | 10x10x10 mm 25x25x12 mm |
|||||
Characteristics of zinc sulfide
| CAS Number | Density (g/cm3) | Boiling point (Cº) | Melting point (Cº) | Refractive index at 550 (nm) | Transparency range (µm) | Evaporation source |
|---|---|---|---|---|---|---|
| 1314-98-3 | 4.1 | / | 1830 | 2.2-2.4 | 0.35-14.5 | E |
| Applications | 1. ZnS Sinter: Holographic anti-counterfeiting film, Coating 2. ZnS Crystal: Cold light coating; Filter; HR coating; Decoration coating |
|||||
Evaporation technique
Zinc sulfide can be evaporated by electron beam from a molybdenum or tantalum crucible liner. It is usually deposited in a dedicated vacuum chamber because zinc and sulphur have high vapor pressures at low temperatures.