Periodic Table of Elements

Element Osmium - Os

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

Osmium's Name in Other Languages

  • Latin: Osmium
  • Czech: Osmium
  • Croatian: Osmij
  • French: Osmium
  • German: Osmium - s
  • Italian: Osmio
  • Norwegian: Osmium
  • Portuguese: Osmio
  • Russian: Осмий
  • Spanish: Osmio
  • Swedish: Osmium

Atomic Structure of Osmium

Chemical Properties of Osmium

Physical Properties of Osmium

Regulatory / Health

  • CAS Number
    • 7440-04-2
  • 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: 1803
  • Name Origin:
    Greek: osmê (odor).
  • Abundance of Osmium:
    • Earth's Crust/p.p.m.: 0.0001
    • Seawater/p.p.m.: N/A
    • Atmosphere/p.p.m.: N/A
    • Sun (Relative to H=1E12): 5
  • Sources of Osmium:
    Produced as a by-product of nickel refining. Annual world wide production is around 0.06 tons.
  • Uses of Osmium:
    Used to tip gold pen points, instrument pivots (such as compass needles and clock bearings), to make electric light filaments. Used for high temperature alloys and pressure bearings.
  • 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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