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Why is calcium sulphate hemihydrate is called as plaster of Paris ? |
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Answer» 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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