CALCIUM SULFATE

CHARACTERISTICS

• It is also known as “Plaster of Paris”.
• (Pure anhydrous) odorless and white colored powder or crystals

DENSITY

• 2.964

MELTING POINT

50 ^OC

SOLUBILITY

• Less soluble in water

(Pure hydrated):

DENSITY

• 2.32

• It releases oxygen at 128 degree Celsius and changes to its anhydrous form at 163 degree Celsius.
• It is non flammable and harmless (non poisonous)
• It is a natural mineral but can also be obtained chemically as a by- product of many chemical reactions.

GRADES

• Technical, pure and F -C –C grades are available in the market.

Calcium sulfate uses

• It is used in Portland cement retarders, tile and plasters, polishing powder, paper making, textile industry, paint making , white pigment, and filling agent.