Write the chemical reactions involved with two
uses of POP.
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The chemical name of plaster of Paris is calcium sulphate hemihydrate because half-molecule of water is attached with calcium sulphate. The chemical formula of plaster of Paris is CaSO
4
.1/2H2O.
Advantages:
It is light in weight and more durable.
It has low thermal conductivity.
It is very good fire resistant and hence a very good heat insulating material.
It is not likely to cause cracking of surfaces.
It has no appreciable chemical action on paint and does not cause alkali attack.
Plaster of Paris gives a decorative interior finish.
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