Q9 of 18 Page 90

Plaster of Paris should be stored in moisture-proof container. Explain why? (AS2)

Plaster of Paris should be stored in moisture-proof container because it absorbs water from moisture and it sets into hard solid mass due to the formation of gypsum.

CaSO4. 1/2H2O + 1 1/2H2O → CaSO4.2H2O


Plaster of Paris Gypsum


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