How plaster of paris be converted into a gypusm
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Explanation:
gypsum rick is converted into gypsum plaster by driving off some of the chemically combined water heating gypsum at 120 degrees celcius for one hour results in a hemi hydrate ( CaSO4,1/2 H2O) with three quarters of the water removed gypsum hemi hydrate is also known as plaster of paris
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Answer: On mixing with water
Explanation:
Plaster of Paris ( CaSO4. 1/2 H2O)
On heating Gypsum at 393K hemihydrate of calcium sulphate or Plaster of Paris (CaSO4. 1/2 H2O) is formed.
The white powder of Plaster of Paris on mixing with water changes to hard solid mass of Gypsum again.
Plaster of Paris uses :
(1) Plaster for setting fractured bones (2) Making statues
(3) Making Decorative or decorations
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