Hexaamminecobalt(III)-hydrogen ion exchange in .ALPHA.- and .THETA.-zirconium phosphates with various particle-size distribution.

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概要

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• The hexaamminecobalt(III)–hydrogen ion exchange in zirconium phosphates was studied by means of the batch method, mainly with regard to the particle-size distribution of zirconium phosphates. α-Zirconium phosphates were prepared by the direct-precipitation method. The degree of ion exchange increased with the fineness of the zirconium phosphates used. The ion exchange proceeded to a lesser extent in highly crystalline α-zirconium phosphate. θ-Zirconium phosphate with the interlayer distance of 10.4 Å took up the complex cation selectively and easily. Fifty percent of the protons in the θ-zirconium phosphate were thus replaced with hexaamminecobalt(III), and the interlayer distance was expanded to 11.2 Å.

• 公益社団法人 日本化学会の論文

著者

• Hasegawa Yoshitsugu

  Department Of Applied Chemistry Faculty Of Technology Tokyo University Of Agriculture And Technology

• Fujita Kunio

  Department of Industrial Chemistry, Faculty of Technology, Tokyo University of Agriculture and Technology

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