Plaster of peris ko gipsam se kese prapt kiya jata hai
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Plaster of Paris is obtained by pulverizing the gypsum which is heated to a temperature of 150 deg centigrade.
addition of water, Plaster of Paris (POP) becomes regular gypsum (dihydrate) again causing the resultant material to harden. This hardening material can be used to create moulds for casting and in construction.
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