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Bible Encyclopedias

1911 Encyclopedia Britannica

Gadolinium

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GADOLINIUM (symbol Gd., atomic weight 157.3), one of the rare earth metals (see Erbium). The element was discovered in 1880 in the mineral samarskite by C. Marignac ( Comptes rendus, 1880, 90, p. 899; Ann. chim. phys., 1880 [5] 20, p. 535).

G. Urbain (Comptes rendus, 1905, 140, p. 583) separates the metal by crystallizing the double nitrate of nickel and gadolinium. The salts show absorption bands in the ultra-violet. The oxide Gd203 is colourless (Lecoq de Boisbaudran).


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Bibliography Information
Chisholm, Hugh, General Editor. Entry for 'Gadolinium'. 1911 Encyclopedia Britanica. https://www.studylight.org/encyclopedias/bri/g/gadolinium.html. 1910.

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