Raman spectroscopic determination of oxoanions in aqueous polysulfide electrolyte solutions

被引：24
|
作者：
Khan, Safyan A. [1 ]
Hughes, Roy W. [1 ]
Reynolds, Paul A. [1 ]
机构：
[1] Univ Bristol, Sch Chem, Bristol Colloid Ctr, Bristol BS8 1TS, Avon, England
来源：
VIBRATIONAL SPECTROSCOPY | 2011年 / 56卷 / 02期
关键词：
Polysulfide; Sulfide; Oxoanion; SULFUR-CONTAINING ANIONS; INORGANIC POLYSULFIDES; VIBRATIONAL-SPECTRA; SODIUM; LIQUID;
D O I：
10.1016/j.vibspec.2011.03.001
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The equilibrium distribution of aqueous sodium polysulfide solutions is investigated over a wide concentration range using Raman spectroscopy technique. A total of eighteen bands were determined in the spectra recorded for aqueous electrolyte solutions of different S:Na ratios. Beyond the presence of four polysulfide (S-n(2-)) species, where "n" varied between 2 and 5 as reported in previous literature, the originality of this study is to show the presence of oxidised sulfur species in these aqueous polysulfide solutions. A detailed comparison of all the bands for polysulfide and oxoanion species determined in this study with those cited in literature is summarised. (C) 2011 Elsevier B.V. All rights reserved,
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页码：241 / 244
页数：4
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