CAS: 7440-54-2 EC No: 231-162-2 MDL No: MFCD00011022 RTECS: LW3850000 UN No: UN3178; Haz Class: 4.1; Packing Group: II Solid, packaged under argon in glass bottle Molecular Formula: Gd MW: 157.25 Melting Point: 1313° Boiling Point: 3273° Density (g/mL): 7.886