Write the chemical formula of Plaster of Paris (POP) and its advantages also

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.

An Intiative by Sri Chaitanya

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

The chemical formula of Plaster of Paris (POP) is: CaSO₄ · ½H₂O

It is called calcium sulphate hemihydrate. POP is prepared by heating gypsum (CaSO₄·2H₂O) at about 150°C:

CaSO₄·2H₂O →_150°C CaSO₄·½H₂O + 1½H₂O

Advantages / Uses of POP:

Quick setting: Used for making casts in fractures and surgical bandages.
Construction & Decoration: Used in false ceilings, wall finishing, and decorative moulds.
Lightweight & Smooth Finish: Provides an even, polished look to surfaces.
Fire-resistant: Protects walls and ceilings from heat.

Final Answer: POP = CaSO₄·½H₂O (calcium sulphate hemihydrate). It is widely used in medicine, construction, decoration, and safety due to its quick-setting and smooth finish.

Watch 3-min video & get full concept clarity