CAS: 7664-39-3 EC No: 231-634-8 MDL No: MFCD00011346 RTECS: MW7875000 UN No: UN1790; Haz Class: 8 (6.1); Packing Group: II Liquid, single sub-boiling quartz distillation Molecular Formula: HF MW: 20.01 Density (g/mL): 1.15