Yttrium


Yttrium
Yttrium Yt"tri*um, n. [NL., from Ytterby, in Sweden. See {Erbium}.] (Chem.) A rare metallic element of the boron-aluminium group, found in gadolinite and other rare minerals, and extracted as a dark gray powder. Symbol Y. Atomic number 39. Atomic weight, 88.9. [Written also {ittrium}.] [1913 Webster +PJC]

Note: Associated with yttrium are certain rare elements, as erbium, ytterbium, samarium, etc., which are separated in a pure state with great difficulty. They are studied by means of their spark or phosphorescent spectra. Yttrium is now regarded as probably not a simple element, but as a mixture of several substances. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Yttrium — (pronEng|ˈɪtriəm) is a chemical element with symbol Y and atomic number 39. It is a silvery metallic transition metal chemically similar to the lanthanoids and has historically been classified as a rare earth element. Yttrium is almost always… …   Wikipedia

  • Yttrium — Strontium ← Yttrium → Zirconium Sc …   Wikipédia en Français

  • YTTRIUM — De Ytterby, village de Suède. Symbole chimique: Y Numéro atomique: 39 Masse atomique: 88,905 g Point de fusion: 1 523 0C Point d’ébullition: 3 337 0C Densité (à 25 0C): 4,457 Élément chimique du groupe des terres rares, de couleur argentée,… …   Encyclopédie Universelle

  • Yttrĭum — Yttrĭum, chemisches Zeichen Y, Äquiv. 32,2 (H = 1) od. 402,5 (O = 100), seltenes Metall. Der Chemiker Gadolin entdeckte 1794 in einem, im Feldspathe von Ytterby unsern Fahlun in Schweden vorkommenden schwarzen Minerale, dem Ytterbit (Gadolinit, s …   Pierer's Universal-Lexikon

  • Yttrĭum — Y, Metall, findet sich im Gadolinit und Yttrotitanit, als phosphorsaure Yttererde im Ytterspat (Xenotim, Castelnaudit, Wiserin), als Tantalat und Niobat im Yttrotantalit, als Silikat im Orthit etc., Atomgewicht 89, es verbrennt an der Luft zu… …   Meyers Großes Konversations-Lexikon

  • Yttrium — Y, Atomgew. 89, seltenes, im Gadolinit vorkommendes Metall. Das Yttriumoxyd Y2O3 ist neben Thoriumoxyd ein wesentlicher Bestandteil mancher Strümpfe für Auersches Gasglühlicht. Moye …   Lexikon der gesamten Technik

  • Yttrium — Yttrĭum (chem. Zeichen Y), seltenes Erdmetall vom Atomgewicht 89, kommt in den nordischen Mineralien Gadolinit, Orthit und Yttrotantalit vor; nach Abscheidung der Oxyde des Cers, Didyms und Lanthans gewinnt man aus den Rückständen die Yttererde …   Kleines Konversations-Lexikon

  • yttrium — Symbol: Y Atomic number: 39 Atomic weight: 88.905 Silvery grey metallic element of group 3 on the periodic table. Found in uranium ores. The only natural isotope is Y 89, there are 14 other artificial isotopes. Chemically resembles the… …   Elements of periodic system

  • yttrium — metallic rare earth element, 1866, coined in Modern Latin by Swedish chemist Carl Gustaf Mosander (1797 1858) from Ytterby, name of a town in Sweden where mineral containing it was found …   Etymology dictionary

  • yttrium — [i′trē əm] n. [ModL < YTTRIA + IUM: name proposed (1822) before isolation of the element by Mosander (see ERBIUM) in 1843] a rare, trivalent, silvery, metallic chemical element found in combination in gadolinite, monazite sand, samarskite, etc …   English World dictionary


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.