Question

What do you know about plaster of paris?

Answer 1

Plaster of Paris is a popular material that is often used in sculpting materials and gauze bandages. Plaster of Paris is a white powdery chemical compound that is hydrated calcium sulphate that is usually obtained by calcining gypsum. While we have seen many applications of this material in our everyday lives, if we try to understand its chemistry, we will find that it is a white powdery chemical compound that is hydrated calcium sulphate that is usually obtained by calcining gypsum.

Complete answer:
Gypsum plaster is another name for plaster of Paris. $CaS{O_4}{H_2}O{\text{ }}or{\text{ }}2CaS{O_4}{H_2}O$ are the chemical formulas for plaster of Paris.
Plaster of Paris is made by heating gypsum to $423$ degrees Fahrenheit, or $150$ degrees Celsius, or $300$ degrees Fahrenheit.
$CaS{O_4} \cdot 2{H_2}O + heat \to CaS{O_4} \cdot 0.5{H_2}O + 1.5{H_2}O(disch\arg ed\,as\,steam)$
When gypsum is heated to $423$ degrees Fahrenheit, it loses water molecules and produces calcium sulphate hemihydrate. The plaster of Paris is the name given to this product. When water is added to dried plaster of Paris, however, it reforms into gypsum. The hardening and setting process begins roughly $10$ minutes after the mixture is blended and takes around $45$ minutes to complete. For $70 - 75$ hours, it is not totally set.
Plaster of Paris is also known as calcium sulphate hemihydrate and has the chemical formula $\left( {CaSO4} \right){\text{ }}H_2O.$

Note:
Let us know some more important things about the Plaster of paris. Doctors use plaster of Paris to keep shattered bones in the proper place. Toys and decorative things are made from it. It can also be used to make surfaces smoother.