2011 Fiscal Year Final Research Report
Molecular geochemistry : structure of metal ions at solid-water interface and its relationship with their water solubilities and essentiality to organisms
| Project/Area Number |
21654082
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Geochemistry/Astrochemistry
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| Research Institution | Hiroshima University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
FUKUSHI Keisuke 金沢大学, 環日本海域環境研究センター, 助教 (90444207)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 分子地球化学 / XAFS / pKa / 内圏錯体 / 外圏錯体 |
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| Research Abstract |
We investigated local structures of molybdate, tungustate, and other ions adsorbed at the solid-water interface, based on which we can understand the solubilities of various ions in seawater, isotopic fractionation of elements in marine environment etc. Furthermore, systematic variation in the affinities of various ions on oxides can be explained possibly by acid dissociation constant and other thermodynamic parameters.
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