| Title |
The Effect of Temperature on the Stable Region of Magnesium Ion in Aqueous System |
| Authors |
김희진 ( Hee Jin Kim ) ; 김동수 ( Dong Su Kim ) |
| Keywords |
Alkalinity; Eh-pH diagram; Magnesium ion; Stable region |
| Abstract |
Magnesium is one of the abundant natural resources in the earth crust and seawater, which is directly related to various organisms activities interconnecting with water-rock system. In aqueous system, magnesium is known to predominantly exist in the form of Mg2+ ion which is verified in its Eh-pH diagram. When it is at equilibrium in aqueous system, temperature takes an essential role to complete equilibrium states. This study represents the change of the stable region of magnesium ion according to temperature, and how the consequences would affect aquatic organisms. It was revealed that there is a noticeable tendency shrinking the stable region of magnesium ion in a diagram as temperature increases, and as a result, aquatic bio-species presumably have difficulties to absorb the nutrient. Also, it was considered that the water system would be acidified by decreasing alkalinity. |