2*4mm Silicon Dioxide SiO2 crystal pillar Product Name SiO2 crystal pillar CAS No. 7631-86-9 Applications AR coating; Cold light coating; Filter; Insulating coating; Glasses coating; UV coating Specification Details Size Range: 1.granule:1-3mm; 3-5mm 2.pillar: upon demand Color: colorless transparent Purity: 99.99%; Density 2.2 g/cm3 Properties Refractive Index at 550nm:1.45~1.46 Transparency Range(�¼m): 0.2~9 Melting Point(�°C): 1700 Evaporation Source: E Packing details 1 KG/Bag; 1KG/Can or 2KG/Can; 20KG/ Carton Storage Avoid exposure to sunlight and acid; Keep dry MOQ Unlimited Payment T/T, L/C Western Union