CAS: 7783-34-8 EC No: 233-886-4 MDL No: MFCD00149736 UN No: UN1625; Haz Class: 6.1; Packing Group: II Crystalline Linear Formula: Hg(NO₃)₂·xH₂O MW: 324.60 (anhydrous) Melting Point: 79° Density (g/mL): 4.39