The chemical name of “Plaster of Paris” commonly used for setting broken bones is:

Q. The chemical name of “Plaster of Paris” commonly used for setting broken bones is:
Answer: Calcium sulphate
Notes: Plaster of Paris is the common name of Calcium Sulphate hemihydrate, with chemical formula: CaSO4.1/2H2O. Plaster of Paris is produced by heating gypsum at about 100°C.

CaSO4.2H2O (Gypsum) — 100°C > CaSO4.H2O (PoP) + 1½H2O

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