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 ?
Neodymium and praseodymium are vital components in the manufacture of permanent magnets which is used in a wide and expanding range of advanced and high-tech products including electric vehicles, wind turbines, robotics, medical applications and others.
Researchers said the phone also featured a number of "critical elements" including 900mg of tungsten and 70mg of cobalt and molybdenum, as well as 160mg of neodymium and 30mg of praseodymium.
In this paper, the anisotropic Janus composite particles based on urushiol praseodymium chelate polymer (UPr)/polystyrene (PS) was synthesized.
The scanning electron microscopy (SEM) allowed to corroborate the presence of some elements of the lantanoid type: praseodymium (Pr), neodymium (Nd), cerium (Ce), ytterbium (Yb), as well as toxic metals, lead (Pb), associated to minerals of the rare earth phosphate-type.
Praseodymium books, which think they are merely useful and practical but conceal a double: a green or metallic mystery.
Other REEs, including cerium, lanthanum, neodymium, and praseodymium, commonly used as a mixed oxide called mischmetal, are used in steel making to remove impurities and in producing special alloys.
applications 57 Lanthanum Light Battery alloys, lasers, phosphors 58 Cerium Light Ni/metal hydride (NiMH) batteries for hybrid/electric vehicles, phosphor powders 59 Praseodymium Light Permanent magnets, NiMH batteries, photographic filters 60 Neodymium Light Permanent magnets, lasers, astronomical instruments 62 Samarium Light Permanent magnets, reactor control rods 65 Terbium Heavy Permanent magnets, lighting and display phosphors 66 Dysprosium Heavy Permanent magnets, lasers, lighting 67 Holmium Heavy Magnets 69 Thulium Heavy Magnets Atomic Crustal abundance Criticality to clean no.
Staff will process 'rare earth' minerals neodymium and praseodymium which have been shipped over from the company's vast mine at Ngualla in Tanzania, which still needs work before it is up and running.
Mathesh et al., "The behaviour of praseodymium 4-hydroxycinnamate as an inhibitor for carbon dioxide corrosion and oxygen corrosion of steel in NaCl solutions," Corrosion Science, vol.
The appearance of the biasing voltage dependent resonance peak in the dielectric spectra which was also observed in the frequency range of 1 K-l MHz for the graphene oxidedoped praseodymium barium cobalt oxide nanoceramics was attributed to the particular distribution of interface states located between Au and interfacial layer and to the interfacial polarization [20].
Kudin, "A high-temperature mass-spectrometric method for determination of the electron work function of ionic crystals: Lanthanum, cerium, and praseodymium triiodides," Russian Journal of General Chemistry, vol.