Formula of Plaster of Paris
What is the formula of Plaster of Paris?
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Gypsum is a crystalline mineral of hydrated calcium sulphate (chemical formula CaSO4. 2H2O). Gypsum is colorless or white, is not highly water-soluble and is not at all hard.
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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 hydrates are found in large amount deposited in the Montmartre hill in Paris
The chemical formula of plaster of Paris is CaSO4.1/2H2O.
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