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Name the product obtained when Plaster of Paris is mixed with water. State the use of the product. Give two uses of POP.
The chemical formula of Plaster of Paris (POP) is CaSO4.½ H2O.
Gypsum (CaSO4.2H2O) is formed on mixing POP
with water as follows:
CaSO4.½ H2O + 1½ H2O → CaSO4.2H2O
Uses of POP:
In hospitals, as plaster for supporting fractured bones in
the right position.
For making decorative materials and for making wall surfaces
smooth.
As a fire-proofing material.