The oxidation state of sulfur detected in Na2O-CaO-SiO2 float glass by X-ray absorption near edge structure spectra

Zheng Meng; Hong Jiang; Yourong Huang; Changjiu Li; Jinzhen Wang; Zhu Cui

doi:10.1007/s11595-013-0644-2

Journal of Wuhan University of Technology Materials Science Edition ›› 2013, Vol. 28 ›› Issue (1) : 79 -81. DOI: 10.1007/s11595-013-0644-2

Advanced Materials

The oxidation state of sulfur detected in Na₂O-CaO-SiO₂ float glass by X-ray absorption near edge structure spectra

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Abstract

The oxidation state of sulfur is detected in Na₂O-CaO-SiO₂ float glass by synchrotron radiation X-ray absorption near edge structure (XANES) spectra at the sulfur K edge. The measured spectra show the only presence of S⁶⁺ in the Na₂O-CaO-SiO₂ float glass and the oxidation state of sulfur do not change with the increase of glass depth. It is also found that, after the melt has gone through the molten tin bath, the S⁶⁺ is the dominant species, but S²⁻ is also present on both surfaces. It is not certain whether cation bonds to S²⁻ or not, because there are many cations dissolved in the melted tin which makes the spectrum complicated.

Keywords

XANES / sulfur K-edge / Na₂O-CaO-SiO₂ float glass / oxidation state / sulfur speciation

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Zheng Meng, Hong Jiang, Yourong Huang, Changjiu Li, Jinzhen Wang, Zhu Cui. The oxidation state of sulfur detected in Na₂O-CaO-SiO₂ float glass by X-ray absorption near edge structure spectra. Journal of Wuhan University of Technology Materials Science Edition, 2013, 28(1): 79-81 DOI:10.1007/s11595-013-0644-2

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