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      • Plaster of Paris is a quick-setting gypsum plaster made of fine white powder (calcium sulphate hemihydrate) that hardens when wet and left to dry. Plaster of Paris, known since ancient times, is so named due to its production from the plentiful gypsum found in Paris.
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  2. plaster of paris, quick-setting gypsum plaster consisting of a fine white powder (calcium sulfate hemihydrate), which hardens when moistened and allowed to dry. Known since ancient times, plaster of paris is so called because of its preparation from the abundant gypsum found near Paris.

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  3. Dec 15, 2007 · Dec 16, 2007, 00:00 IST. AA. Follow us. It wasn't used on a large scale until 1700s, when it was required to be used in all construction in Paris and hence, the name. Why is the plaster of Paris called so? Plaster is the common name for calcium sulphate hemi hydrate made by heating the mineral gypsum, the common name for sulphate of lime.

  4. Feb 18, 2024 · Plaster of Paris has its origins in the Paris Basin, where large deposits of gypsum were found. The production of plaster of Paris involves a process called calcination, where the gypsum is heated to remove the water content and create calcium sulfate hemihydrate.

  5. Jan 5, 2017 · As this fragment suggests, plaster of Paris indeed derives its name from a large and very pure gypsum deposit at the Montmartre and Menilmontant hills in Paris – there were plaster quarries at this site at least as early as the year 500. This led “calcined gypsum” (roasted gypsum or gypsum plaster) to be commonly known as “plaster of ...

  6. Mar 24, 2023 · Plaster of Paris has many properties that make it useful in a wide range of applications, and its versatility has made it a favorite material among artists, builders, and medical professionals alike. The chemical composition of plaster of Paris is calcium sulfate hemihydrate, which means that it contains about half as much water as gypsum.

  7. Applications. Construction: Plaster of Paris is a preferred material for creating decorative elements in architecture. It is also used for creating smooth surfaces on walls or ceilings, owing to its ability to harden upon contact with water. Medical: Owing to its property of hardening with minimal expansion, Plaster of Paris is used in ...

  8. Oct 16, 2013 · The name Plaster of Paris (POP) had its origins from the fact that it was extensively mined from Montmartre in Paris district. But its use predates the industrial revolution, they have been found on the insides of pyramids.

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