Kathy On by yurtgc548

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									Potassium sulphide




             Kathy on
                F.3C
                (25)
K2S
                Physical properties
   Melting point :            840℃
   boiling point:             decomposes
 Physical state at
 room temperature:         powder( Solid )

      Colour:              White crystal ;
                           Turns red or brown on exposure to air

      Density:              1.8 g/cm3

Solubility in water:          Very good


Electrical conductivity:         good
                Chemical properties
    Storage and laboratory
    preparation:
Away from ignition sources
wear protective clothing

Store in a cool, dry, ventilated area and avoid direct sunlight

should be stored in fireproof container




                   Both reducing and oxidising.
   First Aid Measure
inhalation   Quickly move the patient to
             fresh air environment


 Skin        Avoid direct contact with
             compounds


                 Flush with warm water for 20
                 
 Eye
                 minutes
  s


ingestion            Don't eat anything
                     Drink about 240-300ml water
                     Use in firework




Potential hazards:
                        Resourse

   http://en.wikipedia.org/wiki/Potassium_sulfide
   http://www.inchem.org/documents/icsc/icsc/eics0549.h
    tm
   http://science.jrank.org/pages/18437/potassium-
    sulphide.html



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