define plaster of Paris and it's formula
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ANSWER Verified. CaSO4. 1/2 H2O. Calcium sulphate with half a molecule of water per molecule of the salt (hemi-hydrate) is called plaster of paris (plaster of paris). It is prepared by heating gypsum (CaSO4.2H2O) at 120°C in rotary kilns, where it gets partially dehydrated.
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The compound plaster of paris is prepared by heating gypsum at 120oC. The chemical formula for the plaster of paris is (CaSO4)2. H2O.
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