why plaster of paris is known as plaster of paris?
Answers
1. The Dutch military surgeon Anthonius Mathijsen while working at the military hospital in Haarlem discovered that bandages soaked in water and plaster of Paris were becoming hard within minutes providing sufficient casting for injured limbs. He published his monograph in 1852 in a medical magazine called Repertorium.
2. 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.
3. The chemical formula for the plaster of Paris is (CaSO4) H2O and is better known as calcium sulfate hemihydrate.
4. Plaster of Paris is used to make sculptures and metal castings used as decorative in buildings. It is also used in buildings to avoid fire hazards as Plaster of Paris is fire resistant. It is used as a coating on wood and metal structures to avoid any fire accidents.
5. t is also called basic salt. Plaster of Paris is obtained by heating gypsum. The chemical formula of plaster of Paris is CaSO4.
Answer:
Known since ancient times, plaster of paris is so called because of its preparation from the abundant gypsum found near Paris. Plaster of paris does not generally shrink or crack when dry, making it an excellent medium for casting molds.
Explanation: