Question

why is calcium sulphate hemihydrate called plaster of paris​

Answer 1

p-phenylenediamine,

diaminobenzene,

toluene-2,5-diamine,

resorcinol etc.

thatswhy

Answer 2

Answer:

Plaster of Paris (POP) is formed by heating Calcium sulphate hemihydrate. So Calcium sulphate hemihydrate is also called as plaster of paris.

Explanation:

Calcium sulphate hemihydrate is also called as gypsum.

Plaster of Paris is formed by heating gypsum to 140 - 180 degrees centigrade.

The name plaster of Paris is given as larger amount of calcium sulphate hemi hydrate is found in Paris.