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Dissolution Behavior of Waste Glass Under Reducing Condition

Published online by Cambridge University Press:  25 February 2011

Tsuyoshi Imakita
Affiliation:
Kobelco Research Institute, Inc., Takatsukadai, Nishi-ku, Kobe 651-22, Japan
Kaoru Sasakawa
Affiliation:
Kobelco Research Institute, Inc., Takatsukadai, Nishi-ku, Kobe 651-22, Japan
Fumio Matsuda
Affiliation:
Kobe Steel Ltd., Wakihama-cho, Chuo-ku, Kobe 651, Japan
Ryutaro Wada
Affiliation:
Kobe Steel Ltd., Wakihama-cho, Chuo-ku, Kobe 651, Japan
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Abstract

A corrosion test of a model waste glass was carried out with and without carbon steel, and the leaching behavior of the glass was studied under reducing condition in a glove box purged with N2. The redox potential and pH were monitored, and the concentration of Fe, Na, Si, and Mo in the leachates were measured to understand the leaching behavior of the glass. The redox potential of the leachates obtained in the corrosion test coexisting with carbon steel under reducing conditions showed initially that it was based on an Fe0/Fe2+ redox potential, and gradually it increased to that based on Fe2+/Fe3+ one. The corrosion rate of the glass under oxidizing conditions was ten times greater than that obtained with carbon steel, and that under reducing condition with carbon steel was negligible small.

Type
Research Article
Copyright
Copyright © Materials Research Society 1994

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References

1 Power Reactor and Nuclear Fuel Development, Co., PNC TN1410 93-012 (H3 report), 1992.Google Scholar
2 Wada, R., Yamaguchi, K., Matsuda, F., Masuda, T., Nakasaku, S. and Yuhara, T., R&D Kobe Steel Engineering Reports, 41, [4], pp 123126, 1991.Google Scholar

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