General Properties of Sulphur hexafluoride (SF6)

Identity

Chemical structureChemical FormulaCommon name
SF6 Sulphur Hexafluoride

Physical and chemical properties

Physical and chemical properties of sulphur hexafluoride

  • Appearance : pressurized liquefied gas
  • Color / Colour : colorless / colourless
  • Odor / Odour : odorless / odourless

Change of state

  • Melting point / range : -50,8°C
  • Boiling point / range (1013 mbars) : -63,8°C
  • Remark : Sublimation
  • Flash point : Not applicable
  • Flammability : Non-flammable
  • Auto-flammability : Not applicable
  • Vapor / vapour pressure :
    • = 21,4 bar temperature 20°C
    • = 37,1 bar temperature 45°C
  • Density : = 1,56 temperature 0°C
  • Specific density : = 6,16 (gaseous form)
  • Vapour / vapour density (air = 1) : = 5,1

Solubility

  • Slightly soluble in : Water : 40 mg/l - Temperature 20°C
  • Remark : Atmospheric pressive
  • Soluble in : Alcohol and ether
  • pH : Neutral (aqueous extract)
  • Partition coefficient P (n-octanol/water) : log P o/w=1,68
  • Decomposition temperature :
    • = 200°C ( Remark: moist air )
    • = 800°C (Remark: dry air )
  • Danger of explosion : Not applicable
  • Oxidizing properties : Not applicable