Activity › Discussion › Science & Technology › Plaster of Paris should be stored in a moisture proof container. Explain why? › Reply To: Plaster of Paris should be stored in a moisture proof container. Explain why?
-
::
Plaster of Paris is chemically calcium sulphate. So when it comes in contact with moisture it changes into a hard substance called gypsum. This reaction cannot be reversed and therefore it gets wasted. So it is advised to store plaster of Paris in a moisture proof container.