CAS: 7631-86-9 EC No: 231-545-4 MDL No: MFCD00011232 1-3mm Fused Lump Linear Formula: SiO₂ MW: 60.08 Melting Point: 1610° Boiling Point: 2230° Density (g/mL): 2.2-2.6 Refractive Index: 1.544