<P> Because magnesium is a mobile nutrient, magnesium chloride can be effectively used as a substitute for magnesium sulfate (Epsom salt) to help correct magnesium deficiency in plants via foliar feeding . The recommended dose of magnesium chloride is smaller than the recommended dose of magnesium sulfate (20 g / L). This is due primarily to the chlorine present in magnesium chloride, which can easily reach toxic levels if over-applied or applied too often . </P> <P> It has been found that higher concentrations of magnesium in tomato and some pepper plants can make them more susceptible to disease caused by infection of the bacterium Xanthomonas campestris, since magnesium is essential for bacterial growth . </P> <P> Magnesium in natural seawater values are between 1250 mg / L and 1350 mg / L, approximately 3.7% of the total seawater mineral content . Dead Sea minerals contain a significantly higher magnesium chloride ratio, 50.8% . Carbonates and calcium are essential for all growth of corals, coralline algae, clams, and invertebrates . Magnesium can be depleted by mangrove plants and the use of excessive limewater or by going beyond natural calcium, alkalinity, and pH values . </P> <P> Magnesium ions are bitter - tasting, and magnesium chloride solutions are bitter in varying degrees, depending on the concentration of magnesium . </P>

How many magnesium atoms are in one molecule of mgcl2