Leaching mechanism of PbOSiO2 glasses in acid solution

Ohtake, Katsuya; Kariya, M.; Ichimura, Teijiro

doi:10.1016/0022-3093(82)90130-2

Cited by 10 publications

(10 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…5 [6]. However, after melting, the glass composition was found to be slightly different from those of mixed powders ( Table 1).…”

Section: Methodsmentioning

confidence: 78%

“…Some studies have reported the etching of lead silicate glasses in acid solutions, such as PbO-SiO 2 glasses in a HNO 3 solution [5] and PbO-SiO 2 -alkali oxides in a H 2 SO 4 solution [6]; however, these studies have been limited to a simple glass system, or to binary or ternary oxide glass systems. Recently, structural and quantitative analyses have been reported for PbO-SiO 2 -BaO-ZrO 2 glasses after leaching in a HNO 3 or CH 3 COOH solution [6][7][8].…”

Section: Introductionmentioning

confidence: 98%

See 1 more Smart Citation

Etching behavior of Pb ion from PbO-B2O3-SiO2 glasses in HNO3 solution

Kim¹,

Hwang

Lee

et al. 2009

Met. Mater. Int.

View full text Add to dashboard Cite

Quantitative studies on the dissolution of Pb in an acid solution were conducted to understand the etching mechanism in PbO-SiO2-B2O3 glasses. In this study, the etching was done on bulk glasses of a PbO-SiO2-B2O3 system with a HNO3 solution at 40°C, and the surface structure of the glasses and ion dissolution behavior were analyzed using X-ray photoelectron spectroscopy (XPS), Raman spectrophotometer, and inductive coupled plasma spectrometry, respectively. The results showed that Pb (1.5-5.5 %) and B (0.8-3 %) ions are the major components etched. Small amounts of Si, Al, Ti, and Zr were detected in the etching solution. The analysis of O1s in the XPS peaks showed that the ratio of non-bridging oxygen (NBO) to bridging oxygen (BO) changed from 1:2.7 to 1:0.6 after leaching with the HNO3 solution. The Si-O-Pb and Si-O-Si bindings on the glass surface appeared to be a silicon-rich region where Si-O binding occurs after etching.

show abstract

“…5 [6]. However, after melting, the glass composition was found to be slightly different from those of mixed powders ( Table 1).…”

Section: Methodsmentioning

confidence: 78%

Section: Introductionmentioning

confidence: 98%

Etching behavior of Pb ion from PbO-B2O3-SiO2 glasses in HNO3 solution

Kim¹,

Hwang

Lee

et al. 2009

Met. Mater. Int.

View full text Add to dashboard Cite

show abstract

“…With a lower acid concentration, similar to the one used by previous authors [8][9][10][11], negligible hydrolysis causes no gel-layer observation. The thickness of the gel-layer produced in this research is, however, so much (10-80 lm) to be detected by the SEM (Fig.…”

Section: Discussionmentioning

confidence: 58%

“…Ohtake [11] used 35-60 mol% PbO LSG samples in 10 À4 N HNO 3 . PbO content of the samples leached in 0.01 N HNO 3 at 90°C by Bertoncello et al [8] was 45.3 wt%; while that of Bonnet et al [9] in 0.01 N HNO 3 at 90°C was 66 wt% PbO.…”

Section: Introductionmentioning

confidence: 99%

Mechanism of deleading of silicate glass by 0.5N HNO3

Sadrnezhaad

Rahimi

Raisali

et al. 2009

Journal of Non-Crystalline Solids

View full text Add to dashboard Cite

“…Both ion-exchange and hydrolysis reactions are known, therefore, to affect the corrosion of the silicate glasses. [1][2][3][4][5][6][7][8] The ion exchange reaction is, however, much faster than the hydrolysis reaction.…”

Section: Introductionmentioning

confidence: 99%

Effects of Ion-Exchange and Hydrolysis Mechanisms on Lead Silicate Glass Corrosion

Rahimi¹,

Sadrnezhaad²

2012

Corrosion

View full text Add to dashboard Cite

Corrosion of lead silicate glass (LSG) contacting 0.5 M aqueous nitric acid (HNO 3 ) was investigated via scanning electron microscopy, energy-dispersive spectroscopy, inductively coupled plasma analysis, and weight-loss measurement to determine the respective contributions of the ion-exchange vs. the hydrolysis reactions. The LSG having X M ≡ Pb + K + Na Si mole ratios of less than 0.7 showed very little weight loss with no Si network deterioration. At X M > 0.7, the mechanism changed into the hydrolysis, which caused the formation of a networkless gel layer resting at the solid/liquid interface. Addition of titania (TiO 2 ) and zirconia (ZrO 2 ) had disparate effects: X M < 0.7 improved corrosion resistance; while X M > 0.7 caused detrimental consequences.

show abstract

Leaching mechanism of PbOSiO2 glasses in acid solution

Cited by 10 publications

References 8 publications

Etching behavior of Pb ion from PbO-B2O3-SiO2 glasses in HNO3 solution

Etching behavior of Pb ion from PbO-B2O3-SiO2 glasses in HNO3 solution

Mechanism of deleading of silicate glass by 0.5N HNO3

Effects of Ion-Exchange and Hydrolysis Mechanisms on Lead Silicate Glass Corrosion

Contact Info

Product

Resources

About