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Article: Lutetium
- Article from:
- Chemistry: Foundations and Applications
- Author:
CopyrightCOPYRIGHT 2004 The Gale Group, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Lutetium
melting point:
1,675
°
C
boiling point: 3,315
°
C
density: 9.84 g/cm
3
most common ions: Lu
3+
The mixture of oxides known as ytterbia was obtained from yttria by Jean-Charles-Galissard de Marignac in 1878. From ytterbia the oxides of three elements were isolated: ytterbium (named after the town of Ytterby) by Marignac; scandium (named after Scandinavia) by L. F. Nilson in 1879; and lutetium (named after Lutetia, an ancient name of Paris) by G. Urbain, C. A. von Welsbach, and C. James in 1907. Lutetium is a rare element (comprising 7.5 (10
−
5
% of the igneous rocks of Earth's crust) and is found together with the heavy
lanthanides
. Essentially, there are two ...