Plaster of Paris

Hemihydrate Calcium Sulfate

Common Uses of Plaster of Paris

  • In surgery for setting broken or fractured bones
  • For making casts for statues, in dentistry, for surgical instruments, and toys etc
  • In making black board chalks, and statues
  • In construction industry
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Physical and Chemical Properties of Plaster of Paris

  • white powder
  • when mixed with water and heat it makes a harden porous mass
  • odorless

Facts about Plaster of Paris

  • Plaster of Paris is made by a process which involves exposing the gypsum to very high temperatures to create calcium sulfate
  • used as a coagulant in products like tofu
  • studies show in 2011 that Mars contains calcium sulfate in a vein on the surface