How is plaster of Paris manufactured? Write the chemical equation for the reaction involved. Write any four uses of plaster of Paris.
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Plaster of Paris is prepared by heating gypsum at 373 K. On heating, it loses water molecules and becomes calcium sulfate hemihydrate (CaSO4. 1/2 H2O) which is called Plaster of Paris.
Uses: Used in making casts and patterns for molds and statues.
Used as the cement in ornamental casting and for making decorative materials.
Used as a fireproofing material and for making chalks.
Used in hospitals for immobilizing the affected part in case of bone fracture or sprain.
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