[H47-50] ガラス固化体の性状

[H49] Investigation of the chemical form of ruthenium compounds in the vitrification process

(1) Synthetic experiments of sodium ruthenates using ruthenium and sodium nitrates

^〇Takayuki Nagai¹, Ken-ichi Sasage¹, Koichi Ohyama¹, Nobuaki Sato², Takehiko Inose³, Seiichi Sato³, Kiyoshi Hatakeyama⁴ (1.Japan Atomic Energy Agency, 2.Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 3.Inspection Development Company Ltd., 4.E&E Techno Service Co., Ltd.,)

Keywords:vitrification, ruthenium, sodium ruthenate, XRD, TG-DTA

ガラス固化体中に析出するRuO₂針状結晶はNa₃RuO₄を経て生成すると考えられることから，Ru化合物と
NaNO₃を原料にルテニウム酸ナトリウムの合成を行い，Na₂RuO₃，Na₂RuO₄，Na₃RuO₄の生成を確認した．