Calcium sulphate hemihydrate (CaSO4.1/2 H2O) is known as Plaster of Paris. The hydrated state of calcium sulphate on heating yields plaster of pairs.
What is plaster of Paris?
Plaster of Paris is a white powdery chemical compound which is hydrated calcium sulfate that is usually obtained from calcining gypsum.
Plaster of Paris is manufactured by heating gypsum at 423K or 150o C/300o F.
CaSO4·2H2O + heat → CaSO4·0.5H2O + 1.5H2O (discharged as steam)
Uses of plaster of Paris
Plaster of pairs has a wide range of applications some of which are listed below
- Plaster of Paris is used to make fine artwork for decoration and beautification of monuments and building.
- In the medical field, Plaster of Paris is still commonly utilized a mould and casts.
- Plaster is employed by numerous morticians and executives of funeral houses to remake the damaged tissue, rejoin cut off parts of dead bodies, and to fill wounds that occurred.