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Rare Earth Metal Praseodymium Block 99.9% Pure Pr Element Collection Hobby Gifts

Rare Earth Metal Praseodymium Block 99.9% Pure Pr Element Collection Hobby Gifts

$ 9.13

Availability: 88 in stock
  • Weight: 10g
  • Country/Region of Manufacture: China
  • Condition: New

    Description

    Name: Praseodymium
    Element sy
    mbol: Pr
    Purity: 99.9%
    Weight: 10 g, 50
    g
    Atomic number: 59
    Mel
    ting point: 931 ℃
    Boiling point: 3520 ℃
    Density: 6.77 g/cm³
    Note: The corrosion resistance of praseodymium in the air is stronger than that of lanthanum, cerium, neodymium and europium, but it will produce a fragile green oxide when exposed to the air. This is not a quality problem, it is caused by the characteristics of praseodymium.