Adsorption and microcalorimetric investigations of n-butylamine intercalation in α- and γ-zirconium phosphates

I. Dékány, L. Szirtes

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Abstract

The intercalation process of n-butylamine was investigated. The adsorption of n-butylamine in interlamellar space had stepwise character in case of both crystalline forms of zirconium phosphate. The intercalated n-butylamine existed at low concentration as bilayered complex. The reaction heat was determined by a microcalorimetric method. It was found that about 90% of it refers to the neutralization of n-butylamine and only about 10% is related with surface adsorption (ion exchange). The steps of adsorption are 6.0 J/g and 1.0 J/g reaction heat values, respectively. The enthalpy balance of total process in dilute solution system (c0=3.0 vol%) is 14.67 kJ/mol. The calculated value for ion adsorption (exchange) was 1.37 kJ/mol.

Original languageEnglish
Pages (from-to)167-174
Number of pages8
JournalJournal of Radioanalytical and Nuclear Chemistry Articles
Volume190
Issue number1
DOIs
Publication statusPublished - Feb 1 1995

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ASJC Scopus subject areas

  • Analytical Chemistry
  • Nuclear Energy and Engineering
  • Radiology Nuclear Medicine and imaging
  • Pollution
  • Spectroscopy
  • Public Health, Environmental and Occupational Health
  • Health, Toxicology and Mutagenesis

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