A compound which is prepared from gypsum has the property of hardening when mixed with a proper quantity of water. Identify the compound. Write the chemical equation for its preparation. For what purpose is it used in hospitals?
The compound prepared from gypsum on heating it at 100°C, is known as Plaster of Paris. Its chemical formula is CaS04.f H20. Hence, its chemical name is calcium sulphate hemihydrate. The chemical equation for its preparation is as follows:
Plaster of Paris is used in hospitals mainly as plaster for supporting fractured bones in the right position. In dentistry, it is used for making casts.