Periodic Table of Elements

Element Neodymium - Nd

Comprehensive data on the chemical element Neodymium is provided on this page; including scores of properties, element names in many languages, most known nuclides of Neodymium. Common chemical compounds are also provided for many elements. In addition technical terms are linked to their definitions and the menu contains links to related articles that are a great aid in one's studies.

Neodymium Menu

Overview of Neodymium

Neodymium's Name in Other Languages

  • Latin: Neodymium
  • Czech: Neodym
  • Croatian: Neodimij
  • French: Néodyme
  • German: Neodym - r
  • Italian: Neodimio
  • Norwegian: Neodym
  • Portuguese: Neodímio
  • Russian: Неодим
  • Spanish: Neodímio
  • Swedish: Neodym

Atomic Structure of Neodymium

Chemical Properties of Neodymium

Physical Properties of Neodymium

  • Atomic Mass Average: 144.24
  • Boiling Point: 3341K 3068°C 5554°F
  • Coefficient of lineal thermal expansion/K-1: 6.7E-6
  • Conductivity
    Electrical: 0.0157 106/cm Ω
    Thermal: 0.165 W/cmK
  • Density: 7.01g/cc @ 300K
  • Description:
    A Silvery rare earth metal that tarnishes in air and reacts slowly with cold water, but reacts rapidly in hot water.
  • Elastic Modulus:
    • Bulk: 31.8/GPa
    • Rigidity: 16.3/GPa
    • Youngs: 41.4/GPa
  • Enthalpy of Atomization: 322 kJ/mole @ 25°C
  • Enthalpy of Fusion: 7.14 kJ/mole
  • Enthalpy of Vaporization: 273 kJ/mole
  • Flammablity Class:
  • Freezing Point: see melting point
  • Hardness Scale
    • Brinell: 265 MN m-2
    • Vickers: 343 MN m-2
  • Heat of Vaporization: 273kJ/mol
  • Melting Point: 1289K 1016°C 1861°F
  • Molar Volume: 20.6 cm3/mole
  • Physical State (at 20°C & 1atm): Solid
  • Specific Heat: 0.19J/gK
  • Vapor Pressure = 0.00603Pa@2617°C

Regulatory / Health

  • CAS Number
    • 7440-00-8
  • OSHA Permissible Exposure Limit (PEL)
    • No limits set by OSHA
  • OSHA PEL Vacated 1989
    • No limits set by OSHA
  • NIOSH Recommended Exposure Limit (REL)
    • No limits set by NIOSH
  • Levels In Humans:
    Note: this data represents naturally occuring levels of elements in the typical human, it DOES NOT represent recommended daily allowances.
    • Blood/mg dm-3: n/a
    • Bone/p.p.m: n/a
    • Liver/p.p.m: n/a
    • Muscle/p.p.m: n/a
    • Daily Dietary Intake: n/a
    • Total Mass In Avg. 70kg human: n/a
  • Discovery Year: 1885
  • Name Origin:
    Greek: neos (new) didymos (twin).
  • Abundance of Neodymium:
    • Earth's Crust/p.p.m.: 38
    • Seawater/p.p.m.:
      • Atlantic Suface: 0.0000018
      • Atlantic Deep: 0.0000032
      • Pacific Surface: 0.0000018
      • Pacific Deep: 0.0000048
    • Atmosphere/p.p.m.: N/A
    • Sun (Relative to H=1E12): 17
  • Sources of Neodymium:
    Chief ores of Neodymium are monazite and bastnasite. Annual world wide production is around 7,300 tons. Primary mining areas are USA, Brazil, India, Sri Lanka and Australia.
  • Uses of Neodymium:
    Used in ceramics to color glazes, in alloys for permanent magnets, for special lens with praseodymium. Also to produce bright purple glass and special glass that filters infrared radiation.
  • Additional Notes:

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