Question

Plaster of paris should be stored in a moisture proof container ? explain why ?

Answer 1

plaster of paris should be stored in a moisture proof container because when plaster of paris come in the presence of water it forms gypsum giving a hard solid mass which is ultimately useless after some time

Answer 2

Heya !!!


plaster of Paris:-

plaster of paris is stored in moisture proof container because when it react with 3/2 molecule of water then it form gypsum


here is equation that show reaction between Plaster Of Paris and water.


Caso4 .1/2 H20 + 3 /2H20 ==> Caso4 .2H20



whenever plaster of paris is exposed to air it take 3 by 2 molecules of water and form gypsum.


due to formation of gypsum salt the Plaster of Paris is going hard.


so to prevent it from getting hard it should be kept in moisture proof container not in exposed air .



hope it helps you dear !!


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