書誌事項
- タイトル別名
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- Dissolution Behavior of Magnetite in Different pH Solutions Containing EDTA
- EDTA ヨウエキ ニ オケル マグネタイト ノ ヨウカイ キョドウ
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説明
Magnetite particles were dissolved at 60-95°C for 9h in different pH (0.1-11) solutions containing EDTA (0-3×10-2mol·dm-3). In the absence of EDTA the dissolution proceeds only at pH below 2. When EDTA is present the dissolution proceeds up to pH 6, and in the pH region of 2-5, the dissolved Fe concentration is almost independent of pH. The dissolution involves a number of processes such as (1) transfer of Fe2+ and Fe3+ ions from magnetite to the solution, (2) chelation of the dissolved Fe2+ and Fe3+ ions with EDTA to form FeIIY and FeIIIY, and (3) air oxidation of Fe2+ and FeIIY ions to produce Fe3+ and FeIIIY. The concentration of dissolved Fe ions can be calculated as the sum of the equilibrium concentrations of the species, i. e., Fe+2, Fe3+, FeIIY and FeIIIY. The actual dissolution behavior was in good agreement with the results calculated as a function of pH and the concentration of EDTA added.
収録刊行物
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- CORROSION ENGINEERING
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CORROSION ENGINEERING 34 (4), 222-227, 1985
社団法人 腐食防食協会
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詳細情報 詳細情報について
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- CRID
- 1390001206259114752
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- NII論文ID
- 130004731754
- 130006024984
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- NII書誌ID
- AN00225595
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- ISSN
- 18841155
- 00109355
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- NDL書誌ID
- 3032252
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可
