Hydrolysis of (CH3)3Sn+ in various salt media

Concetta De Stefano, Claudia Foti, Antonio Gianguzza, Frank J. Millero, Silvio Sammartano

Research output: Contribution to journalArticlepeer-review

27 Scopus citations


The hydrolysis of trimethyltin(IV) has been studied by potentiometry (H+ -glass electrode) and calorimetry in various salt media (NaNO3, NaCl, KCl, Na2SO4, and NaNO3-NaCl mixtures). The effect of ionic strength on the hydrolysis constants is accounted for by a simple Debye-Huc̈kel type equation and by Pitzer equations. The results allow us to obtain ΔH for hydrolysis and the temperature dependence of the Pitzer parameters. The resulting coefficients can be used to examine the speciation of (CH3)3Sn+ in multicomponent electrolyte solutions, such as natural waters, over a wide range of temperature and ionic strength.

Original languageEnglish (US)
Pages (from-to)959-972
Number of pages14
JournalJournal of Solution Chemistry
Issue number7
StatePublished - Jul 1999


  • Dependence on ionic strength
  • Enthalpy of hydrolysis
  • Hydrolysis constants
  • Hydrolysis of trimethyltin(IV)
  • Pitzer interaction parameters
  • Speciation of trimethyltin(IV)

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Molecular Biology
  • Physical and Theoretical Chemistry


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