General Propertues of Sulphur hexafluoride (SF6)

Identity

Chemical structure	Chemical Formula	Common 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