Characteristic
Lutetium is a chemical element with the symbol Lu and atomic number 71. It is a silvery white metal, which resists corrosion in dry air, but not in moist air. Lutetium is the last element in the lanthanide series, and it is traditionally counted among the rare earths.
Phase at STP： solid
Melting point： 1925 K (1652 °C, 3006 °F)
Boiling point： 3675 K (3402 °C, 6156 °F)
Density (near r.t.)： 9.841 g/cm3
when liquid (at m.p.)： 9.3 g/cm3
Heat of fusion ca.： 22 kJ/mol
Heat of vaporization： 414 kJ/mol
Molar heat capacity： 26.86 J/(mol·K)
Application
Lutetium usually occurs in association with the element yttrium and is sometimes used in metal alloys and as a catalyst in various chemical reactions. 177Lu-DOTA-TATE is used for radionuclide therapy (see Nuclear medicine) on neuroendocrine tumours.
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