how to remove permanent hardness of water by calgon method
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complex salt, sodium hexametaphosphate (NaPO3)6.
Calgon ionizes to give a complex anion. The addition of Calgonto hard water causes the calcium and magnesium ions of hard water to displace sodium ions from the anion of Calgon.
Calgon ionizes to give a complex anion. The addition of Calgonto hard water causes the calcium and magnesium ions of hard water to displace sodium ions from the anion of Calgon.
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