Abstract:
Plaster of paris which is calcium
sulphate with half molecule of water of
crystallisation (CaSo4 ½ H2O) possess
outstanding property of setting and
subsequent hardening when mixed with
water. Plaster of paris is extensively used
in ceramic industry for the preparation
of models, moulds and plaster of toys.
It is also used as a main raw material in
the manufacture of toys and statues,
chalk crayons, gypsum plaster boards,
decorative picture frames, besides a wide
range of applications in the interior
decoration of buildings and other
establishments.
