What is the main disadvantage of this method? Why is this method adopted? How is an anticorrosive environment created by the high-alkalinity method? Then how can this difficulty be overcome? Why does...

Why is this method adopted?

How is an anticorrosive environment created by the high-alkalinity method?

Then how can this difficulty be overcome?

Why does the presence of magnesium chloride in water increases the corrosiveness of the latter?