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Lanthanum (La) Metal

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Lanthanum (La) Metal
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Additional information

Item Number

ME57
Product Name

Lanthanum (La) Metal
CAS Number

7439-91-0
M. F.

La
Purity

99%; 99.9%; 99.99% (REM)
Appearance

Silvery lump pieces, ingots, rod, foil, wire, etc.
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Description:

Lanthanum (La) is a rare-earth metal, part of the lanthanide series, with the atomic number 57. It is a soft, silvery-white metal that is highly ductile and has a metallic luster when freshly cut. Lanthanum is known for its ability to absorb moisture from the air, which causes it to tarnish and form a white oxide layer. It is not magnetic, and its properties are similar to those of other lanthanides, but it has a higher melting point and is used in various industrial applications.

  • Symbol: La
  • Atomic Number: 57
  • Density: 6.162 g/cm³
  • Melting Point: 921 °C (1,690 °F)
  • Boiling Point: 3,464 °C (6,267 °F)
  • Appearance: Silvery-white metal, soft and ductile

Applications:

  • Automotive Catalysts: Lanthanum is used in catalytic converters to reduce vehicle emissions by converting harmful gases into less toxic compounds. It’s also applied in petroleum refining.
  • Hydrogen Storage & Fuel Cells: Lanthanum is a key element in hydrogen storage alloys, essential for fuel cell technology and energy storage, especially in hybrid and electric vehicles.
  • Optical Glass: It is used in high-quality optical glass to improve light dispersion and reduce chromatic aberration, valuable in optical instruments.
  • Phosphors & Fluorescent Lighting: Lanthanum is used in phosphors for CRT displays and fluorescent lamps, enhancing brightness and efficiency.
  • Alloys: Lanthanum enhances the properties of metals, particularly in aerospace, high-strength materials, and magnets, improving steel’s strength and heat resistance.
  • Medical Uses: Lanthanum Carbonate is used to treat hyperphosphatemia in chronic kidney disease by binding phosphate in the digestive tract.
  • Superconducting Materials: Lanthanum is used in superconducting materials and high-performance magnets, aiding advancements in electronics and MRI technology.
  • Hydrogenation Reactions: Lanthanum-based catalysts are vital for hydrogenating unsaturated compounds in the chemical industry, essential for making plastics and pharmaceuticals.

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