Ytterbium Powder -325 Mesh 99.9%
Ytterbium is a chemical element with symbol Yb and atomic number 70. It is the fourteenth and penultimate element in the lanthanide series, which is the basis of the relative stability of its +2 oxidation state. However, like the other lanthanides, its most common oxidation state is +3, as in its oxide, halides, and other compounds. In aqueous solution, like compounds of other late lanthanides, soluble ytterbium compounds form complexes with nine water molecules. Because of its closed-shell electron configuration, its density and melting and boiling points differ significantly from those of most other lanthanides.
Phase at STP | solid |
---|---|
Melting point | 1097 K (824 °C, 1515 °F) |
Boiling point | 1469 K (1196 °C, 2185 °F) |
Density (near r.t.) | 6.90 g/cm3 |
when liquid (at m.p.) | 6.21 g/cm3 |
Heat of fusion | 7.66 kJ/mol |
Heat of vaporization | 129 kJ/mol |
Molar heat capacity | 26.74 J/(mol·K) |