抄録
In a process which magnesium dissolved in sea water is removed completely as hydroxide by direct electrolysis, the amount of magnesium and pH value of catholyte change significantly in relation to the quantity of electrolytic current, when the amount, of magnesium dissolved in catholyte becomes quite small.
In this report, the relationship between the amount of magnesium and pH value corresponding to the quantity of electrolytic current was determined in detail under the above mentioned conditions.
Also the behaviour of calcium in sea water was studied.
The relationship between the amount of magnesium and pH value in catholyte was the same as that obtained by the addition of sodium hydroxide in sea water, and the amounts of magnesium dissolved in catholyte agreed with the solubility data of magnesium hydroxide in sodium chloride solutions having various pH values.
