CAS: 7440-24-6 EC No: 231-133-4 MDL No: MFCD00134060 RTECS: WK7700000 UN No: UN3208; Haz Class: 4.3; Packing Group: II Solid, packaged under argon with thin oil layer Molecular Formula: Sr MW: 87.62 Melting Point: 757° Boiling Point: 1384° Density (g/mL): 2.6

CAS: 7440-64-4 EC No: 231-173-2 MDL No: MFCD00011286 RTECS: ZG1925000 UN No: UN3208; Haz Class: 4.3; Packing Group: II Solid, packaged under argon Molecular Formula: Yb MW: 173.04 Melting Point: 824° Boiling Point: 1196° Density (g/mL): 6.54

CAS: 7439-91-0 EC No: 231-099-0 MDL No: MFCD00011066 UN No: UN3208; Haz Class: 4.3; Packing Group: II Solid, packaged under mineral oil Molecular Formula: La MW: 138.91 Melting Point: 920° Boiling Point: 3464° Density (g/mL): 6.19