praseodymium


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Related to praseodymium: neodymium

pra·se·o·dym·i·um

 (prā′zē-ō-dĭm′ē-əm, prā′sē-)
n. Symbol Pr
A soft, silvery, malleable, ductile element of the lanthanide series that develops a characteristic green tarnish in air. It occurs naturally with other rare-earth elements in the minerals monazite and bastnaesite and is used to color glass and ceramics yellow, as a core material for carbon arcs, and in metallic alloys. Atomic number 59; atomic weight 140.908; melting point 931°C; boiling point 3,520°C; specific gravity 6.773; valence 3, 4. See Periodic Table.

[German Praseodym : Greek praseos, variant of prasios, leek-green (from prason, leek) + German -dym, didymium.]

praseodymium

(ˌpreɪzɪəʊˈdɪmɪəm)
n
(Elements & Compounds) a malleable ductile silvery-white element of the lanthanide series of metals. It occurs principally in monazite and bastnaesite and is used with other rare earths in carbon-arc lights and as a pigment in glass. Symbol: Pr; atomic no: 59; atomic wt: 140.90765; valency: 3; relative density: 6.773; melting pt: 931°C; boiling pt: 3520°C
[C20: New Latin, from Greek prasios of a leek-green colour + didymium]

pra•se•o•dym•i•um

(ˌpreɪ zi oʊˈdɪm i əm, ˌpreɪ si-)

n.
a rare-earth metallic trivalent element, named from its green salts. Symbol: Pr; at. wt.: 140.91; at. no.: 59; sp. gr.: 6.77 at 20°C.
[1880–85; praseo- (comb. form representing Greek prásios leek-green, derivative of práson leek) + (di) dymium]

pra·se·o·dym·i·um

(prā′zē-ō-dĭm′ē-əm)
Symbol Pr A soft, silvery, easily shaped metallic element of the lanthanide series that develops a green tarnish in air. It is used to color glass and ceramics yellow and to make glass used in goggles for welders. Atomic number 59. See Periodic Table.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.praseodymium - a soft yellowish-white trivalent metallic element of the rare earth grouppraseodymium - a soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process
metal, metallic element - any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
bastnaesite, bastnasite - a yellow-to-brown mineral that is a source of rare earth elements
monazite - a reddish-brown mineral containing rare earth metals; an important source of thorium and cerium
Translations
празеодим
praseodym
praseodymium
praseodüüm
praseodyymi
praséodyme
praseodimij
prazeodímium
praseódým
プラセオジム
praseodymium
prazeodimis
prazeodym
praseodímio
praseodim
prazeodim
praseodym
praseodim
празеодим

praseodymium

[ˌpreɪzɪəʊˈdɪmɪəm] Npraseodimio m

praseodymium

n (Chem) → Praseodym nt
References in periodicals archive ?
The purpose of the investigation is to study the effect of Praseodymium ions substitution for nickel cobalt ions on structural, electrical and dielectric properties of NixCO1-xPryFe2-yO4 ferrites to make these ferrites suitable for switching and memory storage devices applications.
Lanthanum and cerium will be removed from the rare earth chloride solution using solvent extraction to produce four different rare earth products: lanthanum oxide, 99% grade; cerium hydroxide, 99% grade; mixed lanthanum and cerium oxide, 99% grade; and mixed praseodymium and lutetium oxide.
The most applicable are "light metals" (lanthanum, cerium, praseodymium and neodymium), less often--"medium" (samarium, europium, gadolinium, terbium, dysprosium, holmium), even less--"heavy" (erbium, thulium, ytterbium, lutetium).
Crystallization and spherulitic growth of gadolinium, praseodymium, and mixed didymium heptamolybdate in silica gel medium [17, 18] have been investigated by many workers.
2) In addition to Al, La, praseodymium (Pr), europium (Eu), gadolinium (Gd), terbium (Tb), erbium (Er) and ytterbium (Yb) in root apices can also activate malate release from wheat roots from an Altolerant wheat line.
High value rare earths including neodymium, praseodymium and europium are the value drivers to the Project and underpin projected revenues
Rare earth elements, neoclymium, praseodymium, dysprosium and terbium, used in permanent magnets in computers and wind turbines;
Praseodymium Pr 59 high-strength metals used in aircraft engines, fiber optic cables, carbon arc lighting, provides colors to glasses and enamels, welder's masks, lighters, magnets, lasers.
These elements are not only used in high-technology products; for example, didymium (a mixture of praseodymium and neodymium) has been used for over a century to color safety glass for glassblowing and blacksmithing.
Cerium, Praseodymium, Promethium, Samarium, Europium, Holmium, Erbium, Thulium, Ytterbium
This combined neodymium with the equally difficult to pronounce praseodymium to produce glass which changes from amber brown to green, as you can see in the picture.