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calgon method is used for remove hardness of water (permanet or Temporary )

calgon method is used for remove hardness of water (permanet or  Temporary )
 

Grade:11

1 Answers

Umakant biswal
5359 Points
4 years ago
dear dhairya
its a permanent process , 
calgon is the other name of sodium hexametaphosphate 
calgon ionise to give complex anion . the addition of calgon in the hard water causes the calcium and magnesium ions of hard water to displace sodium ions from the anion of calgon . 
HOPE IT CLEARS 
REGARDS 

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