Aqueous dissolution of silver iodide and associated iodine release under reducing conditions with sulfide

Yaohiro Inagaki; Toshitaka Imamura; Kazuya Idemitsu; Tatsumi Arima; Osamu Kato; Hidekazu Asano; Tsutomu Nishimura

Aqueous dissolution of silver iodide and associated iodine release under reducing conditions with sulfide

Yaohiro Inagaki, Toshitaka Imamura, Kazuya Idemitsu, Tatsumi Arima, Osamu Kato, Hidekazu Asano, Tsutomu Nishimura

Quantum Sciences of Materials

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Citations (Scopus)

Abstract

Aqueous dissolution tests of silver iodide (AgI) were performed in Na ₂S solutions in order to evaluate, empirically, dissolution of AgI to release iodine under reducing conditions with sulfide. The results indicated that AgI dissolves to release iodine being controlled by mainly precipitation of Ag₂S. However, the dissolution of AgI can be depressed to proceed, and the thermodynamic equihbrium cannot be attained easily. Solid phase analysis for the reacted AgI suggested that a thin layer of solid silver forming at AgI surface may evolve to be protective against transportation of reactant species, which can lead to the depression in the dissolution of AgI.

Original language	English
Title of host publication	Scientific Basis for Nuclear Waste Management XXX
Pages	431-436
Number of pages	6
Publication status	Published - Dec 1 2007
Event	2006 MRS Fall Meeting - Boston, MA, United States Duration: Nov 27 2006 → Dec 1 2006

Publication series

Name	Materials Research Society Symposium Proceedings
Volume	985
ISSN (Print)	0272-9172

Other

Other	2006 MRS Fall Meeting
Country/Territory	United States
City	Boston, MA
Period	11/27/06 → 12/1/06

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Cite this

Aqueous dissolution of silver iodide and associated iodine release under reducing conditions with sulfide. / Inagaki, Yaohiro; Imamura, Toshitaka; Idemitsu, Kazuya et al.
Scientific Basis for Nuclear Waste Management XXX. 2007. p. 431-436 (Materials Research Society Symposium Proceedings; Vol. 985).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Inagaki, Y, Imamura, T, Idemitsu, K, Arima, T, Kato, O, Asano, H & Nishimura, T 2007, Aqueous dissolution of silver iodide and associated iodine release under reducing conditions with sulfide. in Scientific Basis for Nuclear Waste Management XXX. Materials Research Society Symposium Proceedings, vol. 985, pp. 431-436, 2006 MRS Fall Meeting, Boston, MA, United States, 11/27/06.

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abstract = "Aqueous dissolution tests of silver iodide (AgI) were performed in Na 2S solutions in order to evaluate, empirically, dissolution of AgI to release iodine under reducing conditions with sulfide. The results indicated that AgI dissolves to release iodine being controlled by mainly precipitation of Ag2S. However, the dissolution of AgI can be depressed to proceed, and the thermodynamic equihbrium cannot be attained easily. Solid phase analysis for the reacted AgI suggested that a thin layer of solid silver forming at AgI surface may evolve to be protective against transportation of reactant species, which can lead to the depression in the dissolution of AgI.",

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AU - Inagaki, Yaohiro

AU - Imamura, Toshitaka

AU - Idemitsu, Kazuya

AU - Arima, Tatsumi

AU - Kato, Osamu

AU - Asano, Hidekazu

AU - Nishimura, Tsutomu

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N2 - Aqueous dissolution tests of silver iodide (AgI) were performed in Na 2S solutions in order to evaluate, empirically, dissolution of AgI to release iodine under reducing conditions with sulfide. The results indicated that AgI dissolves to release iodine being controlled by mainly precipitation of Ag2S. However, the dissolution of AgI can be depressed to proceed, and the thermodynamic equihbrium cannot be attained easily. Solid phase analysis for the reacted AgI suggested that a thin layer of solid silver forming at AgI surface may evolve to be protective against transportation of reactant species, which can lead to the depression in the dissolution of AgI.

AB - Aqueous dissolution tests of silver iodide (AgI) were performed in Na 2S solutions in order to evaluate, empirically, dissolution of AgI to release iodine under reducing conditions with sulfide. The results indicated that AgI dissolves to release iodine being controlled by mainly precipitation of Ag2S. However, the dissolution of AgI can be depressed to proceed, and the thermodynamic equihbrium cannot be attained easily. Solid phase analysis for the reacted AgI suggested that a thin layer of solid silver forming at AgI surface may evolve to be protective against transportation of reactant species, which can lead to the depression in the dissolution of AgI.

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M3 - Conference contribution

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T3 - Materials Research Society Symposium Proceedings

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T2 - 2006 MRS Fall Meeting

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Aqueous dissolution of silver iodide and associated iodine release under reducing conditions with sulfide

Abstract

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All Science Journal Classification (ASJC) codes

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