Speciation of trialkyltin(IV) cations in natural fluids

Claudia Foti, Antonio Gianguzza, Demetrio Milea, Frank J Millero, Silvio Sammartano

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

The hydrolysis of (CH3)3Sn+, (C 2H5)3Sn+ and (C3H 7)3Sn+ has been studied in a Synthetic Seawater (SSW) ionic medium simulating the major composition of natural seawater, at different salinities (5≤S≤45), and at t=25°C. Interactions with anionic components of SSW, considered as single sea salt, are determined by means of a complex formation model. By potentiometric measurements (ISE-H+ and ISE-F- electrodes), the model has been extended to also consider interactions of organotins with carbonate and fluoride ions, which are other important components of seawater. Literature and new values of hydrolysis constants in different ionic media (NaNO 3, NaCl, Na2SO4 and SSW) are used to determine Pitzer interaction parameters. Predictive equations for the calculation of unknown hydrolysis constants and Pitzer interaction parameters of other trialkyltin(IV) cations, such as tributyltin(IV), are proposed.

Original languageEnglish (US)
Pages (from-to)157-167
Number of pages11
JournalMarine Chemistry
Volume85
Issue number3-4
DOIs
StatePublished - Mar 2004

Fingerprint

Seawater
Cations
cation
seawater
Fluids
fluid
hydrolysis
Hydrolysis
tributyltin
Carbonates
sea salt
Fluorides
fluoride
electrode
Salts
Ions
salinity
carbonate
Electrodes
ion

Keywords

  • Hydrolysis
  • Natural fluids
  • Trialkyltin(IV)

ASJC Scopus subject areas

  • Chemistry(all)
  • Oceanography

Cite this

Foti, C., Gianguzza, A., Milea, D., Millero, F. J., & Sammartano, S. (2004). Speciation of trialkyltin(IV) cations in natural fluids. Marine Chemistry, 85(3-4), 157-167. https://doi.org/10.1016/j.marchem.2003.10.004

Speciation of trialkyltin(IV) cations in natural fluids. / Foti, Claudia; Gianguzza, Antonio; Milea, Demetrio; Millero, Frank J; Sammartano, Silvio.

In: Marine Chemistry, Vol. 85, No. 3-4, 03.2004, p. 157-167.

Research output: Contribution to journalArticle

Foti, C, Gianguzza, A, Milea, D, Millero, FJ & Sammartano, S 2004, 'Speciation of trialkyltin(IV) cations in natural fluids', Marine Chemistry, vol. 85, no. 3-4, pp. 157-167. https://doi.org/10.1016/j.marchem.2003.10.004
Foti C, Gianguzza A, Milea D, Millero FJ, Sammartano S. Speciation of trialkyltin(IV) cations in natural fluids. Marine Chemistry. 2004 Mar;85(3-4):157-167. https://doi.org/10.1016/j.marchem.2003.10.004
Foti, Claudia ; Gianguzza, Antonio ; Milea, Demetrio ; Millero, Frank J ; Sammartano, Silvio. / Speciation of trialkyltin(IV) cations in natural fluids. In: Marine Chemistry. 2004 ; Vol. 85, No. 3-4. pp. 157-167.
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