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Issue 5, 2014
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A speciation study of sulfur(IV) in aqueous solution

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In the current work ultraviolet spectrophotometric titrations at different S(IV) concentrations have been globally analysed using the entire spectral dataset to determine the complete speciation of S(IV) in aqueous solution over a large pH range (from 9.6 to 1). As a result, the dimerisation constant for the formation of disulfite from hydrogen sulfite has been accurately determined. Further, protonated disulfite has been identified and quantified for the first time. In addition, the molar absorptivities of all S(IV) species are also reported over the studied wavelength range.

Graphical abstract: A speciation study of sulfur(iv) in aqueous solution

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Publication details

The article was received on 14 Oct 2013, accepted on 20 Nov 2013 and first published on 21 Nov 2013

Article type: Paper
DOI: 10.1039/C3DT52890A
Citation: Dalton Trans., 2014,43, 2147-2152

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    A speciation study of sulfur(IV) in aqueous solution

    Y. Beyad, R. Burns, G. Puxty and M. Maeder, Dalton Trans., 2014, 43, 2147
    DOI: 10.1039/C3DT52890A

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