Periodic Table of Elements

Element Rubidium - Rb

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

Rubidium Menu

Overview of Rubidium

Rubidium's Name in Other Languages

  • Latin: Rubidium
  • Czech: Rubidium
  • Croatian: Rubidij
  • French: Rubidium
  • German: Rubidium - s
  • Italian: Rubidio
  • Norwegian: Rubidium
  • Portuguese: Rubidio
  • Russian: Рубидий
  • Spanish: Rubídio
  • Swedish: Rubidium

Atomic Structure of Rubidium

Chemical Properties of Rubidium

Physical Properties of Rubidium

Regulatory / Health

  • CAS Number
    • 7440-17-7
  • 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: 2.49
    • Bone/p.p.m: 0.1-5
    • Liver/p.p.m: 20-70
    • Muscle/p.p.m: 20-70
    • Daily Dietary Intake: 1.5-6 mg
    • Total Mass In Avg. 70kg human: 680 mg
  • Discovery Year: 1861
  • Name Origin:
    Latin: rubidus (red); the color its salts impart to flames.
  • Abundance of Rubidium:
    • Earth's Crust/p.p.m.: 90
    • Seawater/p.p.m.: 0.12
    • Atmosphere/p.p.m.: N/A
    • Sun (Relative to H=1E12): 400
  • Sources of Rubidium:
    Occurs abundantly, but so widespread that production is limited. Usually obtained from lithium production.
  • Uses of Rubidium:
    Has limited commercial uses and is primarily used for research purposes.
  • Additional Notes:

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