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Acids, bases and salt
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04/09/2021 12:34 pm
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Why should Plaster of Paris be stored in a moisture-proof container?
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04/09/2021 12:37 pm
In the presence of moisture, Plaster of Paris gets hydrated and changes to gypsum which is a hard mass.
CaSO4.1/2H2O + H2O → CaSO4.2H2O
It can no longer be used for making moulds and statues. Therefore, Plaster of Paris is kept in moisture proof containers or bags.