Equilibrium distribution of polysulfide ions in aqueous solutions at 25 degrees C: a new approach for the study of polysulfides' equilibria.

@article{Kamyshny2004EquilibriumDO,
  title={Equilibrium distribution of polysulfide ions in aqueous solutions at 25 degrees C: a new approach for the study of polysulfides' equilibria.},
  author={Alexey Kamyshny and Anatoly Goifman and Jenny Gun and Dan Rizkov and Ovadia Lev},
  journal={Environmental science & technology},
  year={2004},
  volume={38 24},
  pages={6633-44}
}
A new approach based on rapid, chemical derivatization in a single phase was used to determine the disproportionation constants and the underlying thermodynamics of inorganic polysulfides in aqueous solutions. This method resolves the dispute over the existence of hexasulfide in aqueous solutions and establishes the presence of even higher polysulfide chains in water. The Gibbs free energies of formation (G(Sn)(o)2-) for the polysulfide species are 77.4, 71.6, 67.4, 66.1, 67.2, 70.5, and 73.6… CONTINUE READING

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