how plaster of paris is prepared?What is its chemical formula and chemical name?
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Plaster of Paris is prepared by heating Gypsum at 373 K . On heating at 373 K Gypsum loses water molecules and becomes Plaster of Paris . Its chemical name is Calcium Sulphate Hemihydrate or Calcined Gypsum . Its chemical formula is CaSO.nH₂O .
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