Question

how the pastet of paris made

Answer 1

plaster of Paris. mid-15c.; originally it was made from the extensive gypsum deposits of Montmartre in Paris. Any of a group of gypsum cements, essentially hemihydrated calcium sulfate, a white powder that forms a paste when mixed with water and hardens into a solid, used in making casts and molds.

Answer 2

Plaster of paris is made by heating gypsum in large steel pots at about 373 K