Chemical name of Plaster of Paris

The chemical name of Plaster of Paris is
  • Calcium Chloride
  • Calcium Nitrate
  • Calcium Sulphate Hydrate
  • None of these
Monis Rasool Professor Asked on 1st March 2015 in Chemistry.
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    Plaster of Paris is Calcium Sulphate Hydrate.  It is obtained by heating of Gypsum mineral at 150°C.
    Gypsum + Heat = Plaster of Paris + Water
    2CaSO4·2H2O + Heat = 2CaSO4·½H2O + 3H2O

    Chemical Formula of Plaster of Paris = 2CaSO4 · ½H2O
    i.e. There are two molecules of Water (H2O) around each Calcium Sulphate (CaSO4) group.

    RE: Chemical name of Plaster of Paris

    When Plaster of Paris comes in contact with water, it produces large amount of heat and become harder.

    Pushpendra Pal Dean Answered on 1st March 2015.
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    The chemical name for Plaster of Paris is Calcium Sulphate Hydrate. It’s is a quick-setting gypsum plaster consisting of a fine white powder, which hardens when moistened and allowed to dry.

    jakehyet Default Answered on 4th May 2016.
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