why is calcium sulphate hemihydrate called plaster of paris?
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Bcoz it was first discovered in paris
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Plaster of Paris is obtained by heating gypsum or calcium sulphate dihydrate to about 140-180 degree Celsius. When heated to such a temperature, gypsum forms Plaster of Paris. The name is derived from the large deposits of gypsum in the Montmartre hill in Paris.
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