Write the common name and the chemical name of the compound CaSO 4 . 1/2 H 2 O. Write the method of its…
Write the common name and the chemical name of the compound CaSO4 . 1/2 H2O. Write the method of its preparation. Give chemical equation for the reaction, when water reacts with CaSO4 . 1/2 H2O.
Solution
Plaster of Paris; Calcium sulphate hemihydrate
Prepared from gypsum (CaSO4.2H2O) by heating it at 373K
CaSO4.½H2O + 1½H2O → CaSO4.2H2O