Answers

2016-01-28T21:26:08+05:30
It is prepared by heating calcium suphate dihydride or gypsum at 160 degree centigrades approximately
chemical formula- calcium sulphate hemihydrate
chemical formula- caso4 . 1/2 h20

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2016-01-28T22:01:59+05:30
Plaster of Paris is prepared by heating gypsum [which is chemically calcium sulphate dihydrate (CaSO4.2H2O)] at 373 K. On heating at 373 K, gypsum loses water molecules and becomes Plaster of Paris, which has the chemical name calcium sulphate hemihydrate. Its chemical formula is CaSO4.1/2H2O.  Following is the chemical equation for the reaction

Plaster of Paris is prepared by heating gypsum [which is chemically calcium sulphate dihydrate (CaSO4.2H2O)] at 373 K. On heating at 373 K, gypsum loses water molecules and becomes Plaster of Paris, which has the chemical name calcium sulphate hemihydrate. Its chemical formula is CaSO4.1/2H2O.  Following is the chemical equation for the reaction





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