what is plaster of paris
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plaster of Paris is also known as calcium sulphate hemihydrate it is used for making toys etc
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The chemical name of plaster of Paris is calcium sulphate hemihydrate. It's formula is CaSO4.1/2H2O. It is prepared by heating gypsum to a temperature of 100°C. It is used in setting fractured bones in right position. It is also used as fire proofing material. It use in making surfaces.
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