Chemistry in Everyday life | Term 3 Unit 3 | 6th Science - Plaster of Paris | 6th Science : Term 3 Unit 3 : Chemistry in Everyday life
Chapter: 6th Science : Term 3 Unit 3 : Chemistry in Everyday life
Plaster of Paris
Plaster of Paris consists of fine white powder (calcium sulphate hemihydrate) The molecular formula of Plaster of Paris is CaSO4 .
Plaster of Paris
Plaster of Paris consists of fine white powder (calcium sulphate
hemihydrate) The molecular
formula of Plaster of Paris is CaSO4 . 1/2H2O. Known
since ancient times, plaster of paris is so called because of its preparation
from the abundant gypsum found near Paris, capital of France. Plaster of paris
is prepared by heating gypsum, where it gets partially dehydrated.
Uses
* In making black
board chalks.
* In surgery for
setting fractured bones.
* For making casts
for statues and toys etc.
* In construction
industry.
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6th Science : Term 3 Unit 3 : Chemistry in Everyday life