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Why calcium sulphate hemihydrate is called …

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Why calcium sulphate hemihydrate is called plaster of Paris
  • 1 answers

Amar Kumar 7 years, 7 months ago

Plaster of Paris is obtained by heating gypsum or calcium sulphate dehydrate 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. That's why it is called as Plaster of Paris.

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