CAS: 16893-85-9 EC No: 240-934-8 MDL No: MFCD00003491 RTECS: VV8410000 UN No: UN2674; Haz Class: 6.1; Packing Group: III Crystalline/Powder Linear Formula: Na₂SiF₆ MW: 188.06 Density (g/mL): 2.679 Refractive Index: 1.310