Periodic Table of Elements

Element Uranium - U

Comprehensive data on the chemical element Uranium is provided on this page; including scores of properties, element names in many languages, most known nuclides of Uranium. 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.

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Overview of Uranium

Uranium's Name in Other Languages

  • Latin: Uranium
  • Czech: Uran
  • Croatian: Uranij
  • French: Uranium
  • German: Uran - r
  • Italian: Uranio
  • Norwegian: Uran
  • Portuguese: Urânio
  • Russian: Уран
  • Spanish: Uranio
  • Swedish: Uran

Atomic Structure of Uranium

Chemical Properties of Uranium

Physical Properties of Uranium

Regulatory / Health

  • CAS Number
    • 7440-61-1 metal, pyrophoric
  • UN/NA ID and ERG Guide Number
    • 2979  / 162 metal, pyrophoric
  • RTECS: YR3490000
  • NFPA 704
    • Health:
    • Fire:
    • Reactivity:
    • Special Hazard: Radioactive<
    • OSHA Permissible Exposure Limit (PEL)
      • TWA: 0.25 mg/m3
    • OSHA PEL Vacated 1989
    • NIOSH Recommended Exposure Limit (REL)
      • TWA: 0.2 mg/m3
      • STEL: 0.6 mg/m3
      • IDLH: 10 mg/m3 (Potential NIOSH carcinogen)
    • Routes of Exposure: Inhalation; Ingestion; Skin and/or eye contact
    • Target Organs: Skin, kidneys, bone marrow, lymphatic system
    • 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

    Who / Where / When / How

    • Discoverer: Martin J. Klaproth
    • Discovery Location: Berlin Germany
    • Discovery Year: 1789
    • Name Origin:
      From planet Uranus.
    • Abundance of Uranium:
      • Earth's Crust/p.p.m.: N/A
      • Seawater/p.p.m.: 0.00313
      • Atmosphere/p.p.m.: N/A
      • Sun (Relative to H=1E12): N/A
    • Sources of Uranium:
      Primary uranium bearing ores are uraninite, autunite, carnotite, samarskite (some varieties of samarskite contain up to 23% uranium) and torbernite. Annual world wide production is around 35,000 tons. Primary mining areas are in canada, Zaire, Czech Republic and USA.
    • Uses of Uranium:
      For many centuries it was used as a pigment for glass. Now it is used as a fuel in nuclear reactors and in nuclear bombs. Depleted Uranium is used in casings of armor piercing arterial shells, armor plating on tanks and as ballast in the wings of some large aircraft.
    • Additional Notes:

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    A list of reference sources used to compile the data provided on our periodic table of elements can be found on the main periodic table page.

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