How is plaster of prairies chemically different from gypsum. How may these inter converted. Write one uses of plaster of prairie.
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heya!!!
Plaster of paris (POP) has chemical formula CaSO4. 1/2 H2O which is produced by heating gypsum having chemical formula CaSO4.2 H2O at 373 kelvin.
the reaction is--
CaSO4. 1/2 H2O (POP) + 1 and 1/2 H2O -----------> CaSO4.2 H2O (gypsum)
heating gypsum gives POP and adding water to POP gives gypsum as shown in the reaction above.
Plaster of Paris is used for making toys, materials for decoration, and for making smooth surfaces.
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