Plaster of Paris should be stored in a moisture-proof container. Explain why?



Plaster of paris is a white powder. If it is not stored in a moisture-proof container, then it might react with moisture that penetrates through the container..

Upon reaction with water, it gets converted into a hard substance, called gypsum, whose properties are entirely different from that of plaster of paris.

The reaction takes place as follows

Reaction between Plaster of Paris and Water - Teachoo-01.jpg

After being converted into gypsum, it becomes unfit for use.

  1. Class 10
  2. Chapter 2 Class 10 - Acids, Bases and Salts (Term 1)

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CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 11 years and a teacher from the past 11 years. He teaches Science, Accounts and English at Teachoo