Why is calcium sulphate hemihydrate called POP?
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because it is explosive
that's why it is called pop
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Because, Plaster of Paris (POP) is obtained by heating calcium sulphate hemi hydrate, also referred as gypsum for about 140-180 degree Celsius. The name Plaster of Paris (POP) is derived as the calcium sulphate hemi hydrate are found in large amount deposited in the Montmarte hill in Paris.
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