How is plaster of paris prepared what reaction takes place when it sets to a hard mass?
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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
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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Plaster of Paris is prepared by heating gypsum (CaSO4 . 2H2O) at 373 k. If we mix Plaster of Paris(CaSO4 . 1/2 H20) with water a hard substance will be formed, gypsum.
CaSO4 . 1/2H2O + 1 1/2H2O---- > CaSO4 . 2H2O
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