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Symbol : Sr
Atomic number : 38
Melting point : 777°C
Density (near r.t) : 2.64g/cm3
Chemical Composition:
Strontium(Sr) 99% Min
Calcium (Ca) 0.2% Max
Barium(Ba) 0.3% Max
Magnesium(Mg) 0.1% Max
Aluminum (Al) 0.1% Max
Iron (Fe) 0.015% Max
Silicon (Si) 0.10% Max
Sodium (Na) 0.10% Max
  • Strontium is a soft, silver-yellow, alkaline-earth metal.
  • Strontium reacts vigorously with water and quickly tarnishes in air, so it must be stored out of contact with air and water.
  • The metal forms a dark oxide layer when it is exposed to air.
  • Strontium is best known for the brilliant reds its salts give to fireworks and flares.
  • It is also used in producing ferrite magnets and refining zinc.