THERMODYNAMIC APPROACH FOR FORMATION OF LAYERED DOUBLE HYDROTALCITES: EFFECTS OF INTERCALATED ANIONS

• Yang Peijie

  Department of Earth and Planetary Sciences, Graduate School of Science, The University of Tokyo

• late Junxiang He The

  Department of Earth and Planetary Sciences, Graduate School of Science, The University of Tokyo

• Yamagishi Akihiko

  Center of Analytical Quality Control for the Environment

• Sato Hisako

  Department of Chemistry, Faculty of Science, Ehime University

抄録

The solubility product of a layered double hydrotalcite (LDH), Ksp,_LDH, was obtained for [Mg₂Al(OH)₈] [A]_l/nH₂O] with a different kind of intercalated anion, Aⁿ⁻. The pH titration of a solution containing Mg(NO₃)₂, Al(NO₃)₃ and Aⁿ⁻ salts was performed on adding an aqueous NaOH solution under CO₂⁻ free atmosphere. Ksp,_LDH was calculated from the titration curves for Aⁿ⁻ = NO₃⁻, [Fe(CN)₆]³⁻ and [Fe(CN)₆]⁴⁻. The effects of Aⁿ⁻ on the stability of LDH was discussed on the basis of the free energy change of formation.

収録刊行物

• Ｃｌａｙ　Ｓｃｉｅｎｃｅ

  Ｃｌａｙ　Ｓｃｉｅｎｃｅ 20 (2), 27-30, 2016

  一般社団法人 日本粘土学会

キーワード

• layered hydrotalcites
• pH titration
• free energy of formation
• [Fe(CN)₆]^3-

詳細情報

• CRID: 1390282679089630464
• NII論文ID: 130006242974
• NII書誌ID: AA00607148
• DOI: 10.11362/jcssjclayscience.20.2_27
• ISSN: 21863555
• ISSN: 00098574
• NDL書誌ID: 027445717
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I027445717
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可