Chemical reaction behavior between cesium hydroxide and iron rust under various atmospheric conditions

Imoto, Jumpei ; Nakajima, Kunihisa  ; Osaka, Masahiko  

Since seawater was injected into the Fukushima Daiichi Nuclear Power Station during the accident, there is a possibility that the surfaces of stainless steel, low-alloy steel, and carbon steel used as structural materials were rusted. In order to contribute understanding the distribution of cesium, in this study, chemical reaction behavior of iron rusts (iron oxides) and cesium hydroxide at high temperature were investigated under various atmospheric conditions. It was suggested that there was no effect of atmosphere on the major product formed by the chemical reactions between iron rusts and cesium hydroxide.