rahul found that the plaster of paris which he stored in a container has became very hard and lost its binding nature what is the reason for this also weite the chemical equations of the reaction taking place
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Plaster of Paris, quick-setting gypsum plaster consisting of a fine white powder (calcium sulphate hemihydrate), which hardens when moistened and allowed to dry because plaster of Paris turns into Gypsum after reacting with moisture present in air. That’s why plaster of Paris should be stored in a moisture-proof container.
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