Magnesium compounds are usually removed from water, because of the role magnesium plays in water hardness. This is achieved by means of water softening. Magnesium hydroxide is applied as a flocculant in water purification.
Does magnesium chloride affect pH?
Both magnesium sulfate & magnesium chloride are acidic salts with pH values lower than 7 & the sulfate has a lower value than the chloride provided that they have the same concentrations.25 Jun 2017
What happens when you add magnesium chloride to water?
Magnesium chloride dissolves in water to give a faintly acidic solution (pH = approximately 6).