Answers

2014-11-20T04:41:21+05:30
On heating gypsum at 373 K, it loses water molecules and becomes calcium sulphate hemihydrate ( CaSO₄ .1/2 H₂O). This is called Plaster of Paris, the substance which doctors use as plaster for supporting fractured bones in the right position. Plaster of Paris is a white powder and on mixing with water, it changes to gypsum once again giving a hard solid mass.
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On heating gypsum at 373 K, it loses water molecules and becomes calcium sulphate hemihydrate ( CaSO₄ .1/2 H₂O). This is called Plaster of Paris, the substance which doctors use as plaster for supporting fractured bones in the right position. Plaster of Paris is a white powder and on mixing with water, it changes to gypsum once again giving a hard solid mass.
2014-11-20T06:20:30+05:30
Unhydrated zypsum is known as POP
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