What is Plaster of Paris? How it is obtained from Gypsum. Write chemical reaction. Give its one use.
Answers
Answered by
156
It is CaSo4.1/2H2O. This calcium sulphate hemihydrate is prepared by heating the gypsm at 373K. It loses water molecules to form calcium sulphate hemihydtate.
CaSo4.2H2O on heating at 373K gives us CaSo4.1/2H2O
It us used in fractured bones.
Answered by
2
Plaster of Paris
Plaster of Paris is a white powdery compound which is a hemihydrate of calcium sulphate that is generally obtained from calcining gypsum.
Preparation of Plaster of paris from Gypsum
Plaster of paris is prepared by heating gypsum, (CaSO₄.2H₂O) at about 383-393K in the rotating burner.
2[CaSO₄.2H₂O] -------> 2 (CaSO₄)₂ . (H₂O + 3H₂O)
Uses of Plaster of paris
- Plaster of paris is largely used in building industry.
- It is used in surgical bandages used plastering broken or fractured bones of the body.
Similar questions