CAS: 7803-63-6 EC No: 232-265-5 MDL No: MFCD00051073 UN No: UN2506; Haz Class: 8; Packing Group: II Lump Linear Formula: NH₄HSO₄ MW: 115.11 Melting Point: 121-145° Boiling Point: 350° (decomposes) Density (g/mL): 1.79