the chemical formula of POP is CaSO4.1/2H2O, How can H2O be (1/2) divided
Asked by 2806rahul | 24th Oct, 2010, 12:00: AM
Plaster of Paris is a Calcium sulfate semi-hydrate (CaSO4, 1/2 H2O) derived from Gypsum, a calcium sulfate di-hydrate (CaSO4, 2H2O), by firing this mineral at relatively low temperature and thus reducing it to powder.
CaSO4.2H2O + HEAT -----------------> CaSO4.1/2 H2O + 1.5 H2O
and 1/2 H2O indicates that the semi hydrate form of CaSO4
Plaster of Paris is a Calcium sulfate semi-hydrate (CaSO4, 1/2 H2O) derived from Gypsum, a calcium sulfate di-hydrate (CaSO4, 2H2O), by firing this mineral at relatively low temperature and thus reducing it to powder.
CaSO4.2H2O + HEAT -----------------> CaSO4.1/2 H2O + 1.5 H2O
and 1/2 H2O indicates that the semi hydrate form of CaSO4
Answered by | 24th Oct, 2010, 11:37: PM
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