Plaster of Paris (POP) is hemi hydrated form of Gypsum (CaSO4.2H2O) and makes hard Gypsum again when mixed with water. This gypsum is hard and adhesive in nature with heat & sound resistance and porous structure with high water absorption. It does not shrink or crack when dry which make it an excellent medium for ceramic casting molds. Due to the adhesive nature Plaster of Paris is used in various applications like wall coatings, ceilings on ceilings and cornices, etc. It is also used in medicine to make plaster casts to immobilize broken bones though some orthopedic casts. Formation of POP CaSO4.2H2 O+Heat 140C= CaSO4. 12 (H2O)
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Vinay Kumar (Acecone Ceramics Pvt. Ltd.)
G- 11, 1st Floor, Government Press Road, Opposite Sbbj Bank, Near Junagarh, Hanuman Hatha, Bikaner, Rajasthan, India
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