Silicon dioxide (SiO₂)

Appearance:                  colorless transparent pellets

Density:                     2.202 g/cm³

Vapor pressure:               1 Pa at 2000℃      10 Pa at 2200℃

Hardness(Mohs hardness):     5.5

Melting point:                1700℃

Solubility:                    non-soluble in water, soluble in acid

Transmittance scope:           200-2000nm

Refractive index(550nm):       1.46

Vapour deposition condition:     evaporated by electron gun

Vapour deposition temp.:        1800-2200℃

Purity:        >99.9999%

Applications:  anti-reflection film, multi-layer film, filter, spectroscope, film for capacitors, etc.

Specs:       Ø2*2mm     Ø3*3mm       Ø25*10t      Ø25*7t

              1-2mm     1-3mm  2-4mm        

Or according to customer’s demand

Evaporation material,optical coating material,optical thin film material