Chromatographic Study on Boron Isotopic Fractionation at High Pressure
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概要
- 論文の詳細を見る
Boron isotopic fractionation factor (S) between boron adsorbed onto kaolin clay and boron in aqueous solution was determined by break-through column chromatography at 25.0 MPa at 5 and 25°C. The S values obtained were 1.0021 at 5°C and 1.0011 at 25°C, and were smaller than those obtained by the batch method performed at the atmospheric pressure at room temperature. Theoretical calculations estimate that more than 90% of boron in the clay phase was taken up as B(OH)3-form at high pressures. Combining the present S values with preliminarily obtained one at 12.0 MPa, it is likely that S value decreases with increasing pressure, which suggests that the difference of the partial isotopic molar volumes between 10B(OH)3 and 11B(OH)3 is larger than that of the volumes between 10B(OH)4− and 11B(OH)4−.
- 社団法人 日本原子力学会の論文
- 2006-04-25
著者
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NOMURA Masao
Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology
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OI Takao
Faculty of Science and Technology, Sophia University
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松尾 基之
東京大
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OI Takao
Department of Chemistry, Faculty of Science and Technology, Sophia University
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Oi Takao
Department Of Chemistry Faculty Of Science And Technology Sophia University
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Nomura Masao
Research Laboratory For Nuclear Reactors Tokyo Institute Of Technology
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松尾 基之
東京大学大学院総合文化研究科広域科学専攻
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松尾 基之
東大院総合
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MATSUO Motoyuki
Graduate School of Arts and Sciences, The University of Tokyo
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MUSASHI Masaaki
Graduate School of Arts and Sciences, The University of Tokyo
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Musashi Masaaki
Graduate School Of Arts And Sciences The University Of Tokyo
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松尾 基之
東京工業大学大学院総合理工学研究科:(現)東京大学教養学部化学教室
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Matsuo Motoyuki
Univ. Tokyo Tokyo Jpn
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Matsuo Motoyuki
Graduate School Of Arts And Sciences The University Of Tokyo
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松尾 基之
東大教養
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松尾 基之
東大院総合文化
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