Gadolinium

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Description

A rare earth metallic element found in the minerals samarskite, gadolinite, monazite, and xenotime. First separated in 1880, gadolinium is a soft, silver-gray, shiny metal. It is primarily used in neutron shielding, as a phosphor activator, and as an oxygen scavenger. Gadolinium is also used to produce gadolinium-iron garnets that control microwave frequencies.

Synonyms and Related Terms

Gd

Other Properties

Soluble in dilute acids. Insoluble in water and strong alkali.

Composition Gd (atomic no. 64)
CAS 7440-54-2
Melting Point 1312
Density 7.886
Molecular Weight atomic wt =157.25
Boiling Point 3233

Hazards and Safety

Combustible. Sensitive to moisture.

Fisher Scientific: MSDS

Sources Checked for Data in Record

  • Chemical & Engineering News, American Chemical Society, Washington DC, 81 (36) , Sept. 8, 2003 Comment: Joop A Peters and Douglas J. Raber, "The Lanthanides", p. 136
  • G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 179
  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983