Argon

Argon
Argon Ar"gon, n. [NL., fr. Gr. ?, neut. of ? inactive; ? priv. + ? work.] (Chem.) A colorless, odorless gas occurring in the air (of which it constitutes 0.93 per cent by volume), in volcanic gases, etc.; -- so named on account of its inertness by Rayleigh and Ramsay, who prepared and examined it in 1894-95. Symbol, A; at. wt., 39.9. Argon is condensible to a colorless liquid boiling at -186.1[deg] C. and to a solid melting at -189.6[deg] C. It has a characteristic spectrum. No compounds of it are known, but there is physical evidence that its molecule is monatomic. Weight of one liter at 0[deg] C. and 760 mm., 1.7828 g. [Webster 1913 Suppl.]

The Collaborative International Dictionary of English. 2000.

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  • argon — [ argɔ̃ ] n. m. • 1895; mot angl. (1894), du gr. argos « inactif », parce qu il n entre dans aucune combinaison chimique connue ♦ Corps simple (Ar; no at. 18; m. at. 39,948), gaz inerte, incolore et inodore, de la série des gaz rares. Laser à… …   Encyclopédie Universelle

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  • Argon [1] — Argon, chemisches Element A, Atomgewicht 40, von Raleigh und Ramsay als Begleiter des Stickstoffs in der Luft 1894 entdeckt. Farb und geruchloses Gas; spez. Gew. 19,957 (H = 1). Mit kochendem Sauerstoff abgekühlt und unter 50,6 Atm. Druck flüssig …   Lexikon der gesamten Technik

  • Argon [2] — Argon (Bd. 1, S. 296). Die Americ. Cyanamid Co. in Niagara Falls begann im Dezember 1914 mit dem Versand von Argon in technischen Mengen. Moye …   Lexikon der gesamten Technik

  • ARGON — ex stirpe Herculis, post Atyadas, primus regnavit in Lydia, 505. ann. ante Gygem. Nomina successorum eius caligionsâ nocte latent, usque ad Ardysum I. ex Heraclidis XIX, qui regnare incepit, A. M. 3261. Herodot. l. 1. c. 7. Huius tres fuccessores …   Hofmann J. Lexicon universale

  • argon — Symbol: Ar Atomic number: 18 Atomic weight: 39.948 Monatomic noble gas. Makes up 0.93% of the air. Colourless, odorless. Is inert and has no true compounds. Lord Rayleigh and Sir william Ramsey identified argon in 1894 …   Elements of periodic system

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