Science, asked by hitesh2869, 1 year ago

how it is plaster of paris chemically different from gypsum​

Answers

Answered by saijannat
9
Plaster of paris is formed by heating gypsum at 393k .
Gypsum is formed by plaster of paris

393k
CaSo4.1/2+1*1/2-------> CaSo4.2H2O
and vice-versa

bhuvanhazard: Its formed by heating it minimum of above 393K not 373k kindly correct it.
hitesh2869: ok
Answered by bhuvanhazard
7
Plaster of Paris is completely made of heating gypsum of above 393K.Above 393K no water of crystallisation is left and anhydrous calcium sulphate caso4 is formed.Known ad Dead burnt plaster.But gypsum is formed by the evaporation of water from the massive prehistoric sea basins.
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