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How is Gypsum Different from Plaster of Paris

How is gypsum different from plaster of paris. Find the answer to this question and access a vast question bank customized for learners.

Answer: The usual name for calcium sulphate hemihydrate is plaster of paris, or POP. Gypsum contains two moles of crystallization water, while Plaster of Paris has only access to half a mole. Plaster of Paris is made by heating gypsum to 373K, a naturally occurring mineral. Plaster of Paris is a gypsum derivative. Plaster of Paris can be molded into various shapes if moistened, whereas gypsum cannot.