Silicon Dioxide SiO2

99.99% Silicon Dioxide SiO2 Crystal Granule 
Our SiO2 has two categories: crystal granule and cutting pieces
The product in this picture is crystal granule.
Applied in Cold light coating; Decorative coating; Protective coating
We follow critical manufacture standards, quality assurance, welcome your consultation!
Specifications Summary:
Silicon Dioxide (Chemical formula: SiO2)
1.Crystal granule: 1-3mm; 3-5mm
2.Crystal Pillar: upon demand
3.Color: colorless transparent
4.Purity: 99.99%
5.Package: 1 KG/ bag
6.Storage: avoid exposure to sunlight & acid keep dry
Silicon dioxide properties:
1.Cas no.: 7631-86-9
2.Density(g/cm3): 2.2
lting point(℃):1700
4.Refractive index at 550nm: 1.45~1.46
5.Transparency range(μm): 0.2~9
6.Evaporation source: B
7.Application: AR coating; Cold light coating; Filter; Insulating coating; Glasses coating; UV coating