Bellini Sodium Hexametaphosphate Calgon 500g

Sodium Hexametaphosphate or Calgon, has the property of holding calcium and magnesium salts in solution, even when boiling, making it a great water softner.

Sometimes called Graham's Salt, Polyphosphatesodium salt, Sodium polyphosphate or

Calgon; but please note that the proprietry Calgon is not always the same formula as Sodium Hexametaphosphate.

The molecular formula is: Na6O18P6.