Plaster of Paris

Plaster of Paris (pronunciation: /ˈplɑːstər əv ˈpærɪs/) is a type of building material based on calcium sulfate hemihydrate, nominally (CaSO4)2.H2O. It is created by heating gypsum to about 150 °C (300 °F).

Etymology

The term "Plaster of Paris" originates from the fact that the material was originally sourced from the quarries in the Montmartre district of Paris in France, which were the primary source of the material. The term was first used in English in the early 18th century.

Uses

Plaster of Paris is used in a variety of applications, including in art, medicine, and construction. In medicine, it is commonly used to make orthopedic casts and other bandages. In construction, it is used for coating walls and ceilings, and in art, it is used for making sculptures and decorative elements.

Related Terms

• Gypsum
• Calcium sulfate
• Orthopedic cast
• Building material

See Also

• Plaster
• Cement
• Concrete

External links

• Medical encyclopedia article on Plaster of Paris
• Wikipedia's article - Plaster of Paris

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