coating material ZnS
1. uesd on coating
2.yellow-white piece or crystals

 coating material ZnS

 1. Density :3.98 g/cm3
2. Melting point:1800 °C
3. Hardness MaShi:(3.5-4)
   (gram) 178 Kg/was
4.  Expansion coefficient: 6.1 ×10^(-6)
5. Purity:99.99%
6. The film properties:
range of light:40 ~ 140 nm
the refractive index in 550nm:2.3
7. Evaporation conditions:
electron gun, molybdenum boat or tantalum boat evaporation.
the evaporation temperature:1100 °C
evaporation pressure:10^(-3)-10^(-4)
substrate temperature 30 ~ 150 °C

Ap