Importance of plaster of Paris with definition and with marks.
Importance of plaster of Paris with definition and with marks.
The chemical name of plaster of Paris is calcium sulphate hemihydrate because half molecule of water is attached with calcium sulphate. The chemical formula of plaster of Paris is CaSO4.12H2OCaSO_4.\frac{1}{2}H_2O CaSO4.12H2O
A white powdery slightly hydrated calcium sulfate made by heating gypsum.
When water is mixed with it, the gypsum crystals are produced which leads to set into a hard mass. It has an exothermic setting process and may be catalyzed by sodium chloride. It can be retarded by alum or borax. At 473K, Plaster of Paris forms anhydrous calcium sulphate known as dead burnt Plaster of Paris.
CaSO4.2H2O373K−−−→CaSO4.12H2O+32H2O
Gypsum Plaster of paris
CaSO4.12.H2O+32H2O⟶CaSO4.2H2O
Plaster of Paris is a white powder which is used mainly for making toys, statues, blackboard chalk, and for beautification of ceilings of buildings and houses. It is also used for the setting of fractured bones in the right position. It has got its name from the fact that it was first of all prepared from gypsum which was mainly found in Paris. In short, it is also called P.O.P.
The chemical name of plaster of Paris is calcium sulphate hemihydrate because half molecule of water is attached with calcium sulphate. The chemical formula of plaster of Paris is CaSO4.12H2OCaSO_4.\frac{1}{2}H_2O CaSO4.12H2O
A white powdery slightly hydrated calcium sulfate made by heating gypsum.
When water is mixed with it, the gypsum crystals are produced which leads to set into a hard mass. It has an exothermic setting process and may be catalyzed by sodium chloride. It can be retarded by alum or borax. At 473K, Plaster of Paris forms anhydrous calcium sulphate known as dead burnt Plaster of Paris.
CaSO4.2H2O373K−−−→CaSO4.12H2O+32H2O
Gypsum Plaster of paris
CaSO4.12.H2O+32H2O⟶CaSO4.2H2O
Plaster of Paris is a white powder which is used mainly for making toys, statues, blackboard chalk, and for beautification of ceilings of buildings and houses. It is also used for the setting of fractured bones in the right position. It has got its name from the fact that it was first of all prepared from gypsum which was mainly found in Paris. In short, it is also called P.O.P.
