Goodbye to S2- in aqueous solution

P M May; D Batka; G Hefter; E Königsberger; D Rowland

doi:10.1039/c8cc00187a

Goodbye to S^2- in aqueous solution

Chem Commun (Camb). 2018 Feb 20;54(16):1980-1983. doi: 10.1039/c8cc00187a.

Authors

P M May¹, D Batka, G Hefter, E Königsberger, D Rowland

Affiliation

¹ Chemistry, School of Engineering and Information Technology, Murdoch University, Murdoch, WA 6150, Australia. P.May@murdoch.edu.au.

PMID: 29404555
DOI: 10.1039/c8cc00187a

Abstract

New Raman spectra of Na₂S dissolved in hyper-concentrated NaOH(aq) and CsOH(aq) cast serious doubt on the widely-assumed existence of S^2-(aq). To avoid conceptual and practical problems with sulfide equilibria in numerous applications, S^2-(aq) should be expunged from the chemical literature. Thermodynamic databases involving sulfide minerals also need careful revision.