Solubility of selenium in the presence of iron under reducing conditions

Doi, Reisuke ; Uchikoshi, Keiji*

Solubility experiments of Se in the presence of Fe under reducing conditions were performed from oversaturation direction to determine the solubility limiting solid of Se. In 1 month, Se concentration decreased to about 10 $^{-7}$ mol/dm $^{3}$ and equilibrium was attained. XRD patterns of the solid obtained after equilibrium showed that the Se solid phase was only FeSe $_{2}$ . The dependencies of Se concentration on Fe concentration and Eh were interpreted as a dissolution reaction of FeSe $_{2}$ . A solubility limiting solid of Se was determined to be FeSe $_{2}$ .

Language	:	Japanese
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Meeting title	:	日本原子力学会2015年春の年会
Held date	:	2015/03
Location (city)	:	日立
Location (country)	:	日本
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DOI for research data	:	Link to research data related to this paper/report.
Keywords	:	セレン; 溶解度
Research Facility	:	QUALITY(地層処分放射化学研究施設)
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Registration No. : BB20142765
JAEA Abstracts No. :
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