Preparation of Plaster of Paris
How is plaster of Paris prepared from Gypsum? Explain it.
Preparation of Plaster of Paris
Plaster of Paris is made when the gypsum consists of a fine white powder. Calcium sulphate hemihydrate is quickly fixed together with all these things together hard when they are kept dry for a long time. In ancient times, it was known that plaster of Paris is so called because of its preparation from the abandoned gypsum from near Paris.
Plaster of Paris does not shrink or crack after it dries properly. It is a very good material through which we can make models and solid statues, kind of stuff. It is usually used to hold the parts of ornamental plasterwork that are placed on ceilings and cornices. It is also used in medicine to support broken bones so that they can get fixed again.
Plaster of Paris is prepared by heating calcium sulphate dihydrate for gypsum 212 – 180 degrees Celsius, which is 248 – 356 degrees Fahrenheit. After it is dry and set it properly, it can provide a really good protection to the interior surfaces.
– Written By Aruja
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