Chemical and Thermal Stability of Potassium Nickel Hexacyanoferrate(II).

• MIMURA Hitoshi

  Institute for Advanced Materials Processing, Tohoku University

• LEHTO Jukka

  Laboratory of Radiochemistry, Department of Chemistry, University of Helsinki

• HARJULA Risto

  Laboratory of Radiochemistry, Department of Chemistry, University of Helsinki

書誌事項

タイトル別名

• Chemical and Thermal Stability of Potas

抄録

The chemical and thermal stability of a nonstoichiometric compound K_2-xNi_x/2[NiFe(CN)₆]•nH₂O (KNiFC) were examined in connection with distribution behavior for Cs⁺. The face-centered cubic (FCC) structure of KNiFC was stable even in the presence of 8M HCl or 8M HNO₃, and the samples treated with acids had high Kd values for Cs⁺ above 10₄cm³/g. This suggests high resistance of KNiFC to acids. For the KNiFC treated with HNO₃, the lattice parameter (a) increased with increasing the concentration of HNO₃ above 1M. The FCC structure decomposed with NaOH concentrations above 1M, probably due to the hydrolysis of constitutional elements. The thermal decomposition began above 250°C and several steps of weight loss, due to evolution of gases, were observed up to 1, 000°C.

収録刊行物

• Ｊｏｕｒｎａｌ　ｏｆ　Ｎｕｃｌｅａｒ　Ｓｃｉｅｎｃｅ　ａｎｄ　Ｔｅｃｈｎｏｌｏｇｙ（日本原子力学会英文論文誌）

  Ｊｏｕｒｎａｌ　ｏｆ　Ｎｕｃｌｅａｒ　Ｓｃｉｅｎｃｅ　ａｎｄ　Ｔｅｃｈｎｏｌｏｇｙ（日本原子力学会英文論文誌） 34 (6), 582-587, 1997

  一般社団法人 日本原子力学会

キーワード

• chemical stability
• thermal stability
• nonstoichiometric compounds
• potassium nickel hexacyanoferrate
• distribution coefficient
• cesium
• nuclear waste solution
• pH value
• lattice parameter
• hydrolysis
• thermal decomposition
• temperature dependence
• concentration dependence

詳細情報

• CRID: 1390001204093923840
• NII論文ID: 130000824805
• NII論文ID: 10002077372
• NII書誌ID: AA00703720
• DOI: 10.3327/jnst.34.582
• COI: 1:CAS:528:DyaK2sXkvVChu7w%3D
• ISSN: 18811248
• ISSN: 00223131
• NDL書誌ID: 4240105
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4240105
• 本文言語コード: en
• データソース種別:
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  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可