CAS: 7440-19-9 EC No: 231-128-7 MDL No: MFCD00011233 UN No: UN3089; Haz Class: 4.1; Packing Group: II Powder Molecular Formula: Sm MW: 150.36 Melting Point: 1074° Boiling Point: 1794° Density (g/mL): 7.47