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cerium

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Origin: China

Cas No: 7440-45-1

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 50 mt/month

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  • Products Specification
  • Product Description
  • Property

    CAS No.: 7440-45-1 Formula: Ce Molecular Weight: 140.11600

    Description

    Cerium is a soft, ductile, silvery-white metallic chemical element with symbol Ce and atomic number 58. It tarnishes rapidly when exposed to air and is soft enough to be cut with a knife. It is the second element in the lanthanide series, and while it often shows the +3 state characteristic of the series, it also exceptionally has a stable +4 state that does not oxidise water. It is also traditionally considered to be one of the rare earth elements. Cerium has no biological role, but is not very toxic either.
    Cerium is the most common of the lanthanides, followed by neodymium, lanthanum, and praseodymium. It is the 26th most abundant element, making up 66ppm of the Earth's crust, half as much as chlorine and five times as much as lead. Despite always being found in combination with the other rare earth elements in minerals such as monazite and bastnäsite, cerium is easy to extract from its ores, as it can be distinguished among the lanthanides by its unique ability to be oxidised to the +4 state.
    Cerium was discovered in Bastnäs, Sweden by Jöns Jakob Berzelius and Wilhelm Hisinger in 1803, and independently by Martin Heinrich Klaproth in Germany: it was the first of the lanthanides to be discovered. It was first isolated by Carl Gustaf Mosander in 1839. Today, cerium and its compounds have a variety of uses: for example, cerium(IV) oxide is used to polish glass and is an important part of catalytic convertors. Cerium metal is used in ferrocerium lighters for its pyrophoric properties.

    Basic Info

    Chemical Name cerium
    Synonyms

    Cerium,crude;
    CERIUM;
    Cerium,pieces;
    Ceriumingot;
    CERIUM,FOIL;

    CAS No. 7440-45-1
    Molecular Formula Ce
    Molecular Weight 140.11600
    PSA 0.00000
    LogP 0.00000

    Properties

    Appearance & Physical State gray colored, ductile solid
    Density 6.67 g/mL at 25ºC(lit.)
    Boiling Point 3443ºC(lit.)
    Melting Point 795ºC(lit.)

    Safety Info

    Hazard Class 4.1
    Safety Statements 26-36-36/37/39-16
    Packing Group II
    WGK Germany 3
    RIDADR UN 2031 8/PG 2
    Risk Statements R22; R23; R36/38; R36/37/38; R20/21/22; R11
    Hazard Codes C; Xn; F
    Hazard Declaration H228; H261; H302 + H312 + H332; H315; H319; H335
    Caution Statement P210; P231 + P232; P261; P280; P305 + P351 + P338; P422
    Signal Word Danger
    Symbol GHS02, GHS07

    Synthesis Route

    Cerium(III) fluoride+aluminium atomcerium+aluminium trifluoride
    Cerium(III) fluoridecerium
    Cerium(III) chloridecerium

    Precursor

    Cerium(III) fluoride
    Cerium(III) chloride
    aluminium atom

    Downstream Product

    Cerium(III) fluoride
    CERIUM(IV) FLUORIDE
    Cerium(III) chloride
    Cerium(III) iodide

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