plaster of Paris should be stored in a moisture proof container..... explain????
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Explanation:
plaster of Paris which is a white powder should be kept away from moisture because it reacts with water to form gypsum which is solid white mass.
CaSO4. 1/2 H2O(plaster of Paris) + 3/2 H2O = CaSO4 .2H2O(gypsum)
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