What does calcium in water mean in practice?
Calcium contributes to hardness, carbonate alkalinity and CaCO3 saturation, affecting sediment and water stability.
When does it matter?
Total hardness does not allow determining the calcium content without a separate determination or knowledge of magnesium.
Which solutions are related to it?
Ca2+ is measured by ion analysis and the level is corrected by softening, membranes or controlled remineralization.