CAS: 7631-99-4 EC No: 231-554-3 MDL No: MFCD00011119 RTECS: WC5600000 UN No: UN1498; Haz Class: 5.1; Packing Group: III Solid Linear Formula: NaNO₃ MW: 84.99 Melting Point: 306° (decomposes) Boiling Point: 380° Density (g/mL): 2.261