Question

What is Plaster of Paris? How is it obtained?​

Answer 1

Answer:

Plaster of paris is a hemihydrate of calcium sulphate (CaSO4 . 1/2 H2O). Plaster of paris is obtained by heating gypsum to 393K 2 (CaSO4.2H2O)→ 2 (CaSO4). H2O + 3H2O.

Answer 2

Answer:

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.Plaster of Paris is obtained by heating gypsum or calcium sulphate dihydrate to about 140-180 degree Celsius. When heated to such a temperature, gypsum forms Plaster of Paris. The name is derived from the large deposits of gypsum in the Montmartre hill in Paris.