Question

Why temperature controlled necessary during preparation of plaster of paris and how it react with water?

Answer 1

Answer:

On heating gypsum at 373 Kelvin it loses water molecules and it becomes calcium sulphate hemihydrate which is called as plaster of Paris. Plaster of paris is a white powder on mixing with water it changes to gypsum once again giving a hard solid mass. Hope it helps!Feb 11, 2019

Explanation:

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