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A study on waterglass aging by determination of oligomers using feasible trimethylsilyl-gas-chromatography method

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Abstract

In this paper, the trimethyisilyl method was used to study the aging process of waterglass, in which HCl was successfully used as acidic catalystes and a strong polar acetone was used as organic solvent. The results show, all the oligomeric silicate species can be completely converted into trimethylsilyl (TMS) derivatives, when waterglass was stored, the content of mono-silicate gradually increases, and the content of silicate oligomers decreases, but total amount of high polysilicates increases instead, leading to the phenomenon of “bipolar differentiation” occurring. However when waterglass is modified, content of oligomeric silicate species increases, but content of polymeric silicate species decreases, and when waterglass is reflux-condensed, the composition tends to return back to its original orientation.

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Authors and Affiliations

  1. College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325035, P.R. China

    Ming-Chu Pan & Yu-Xiang Yang

  2. Department of Chemistry, East China University of Science and Technology, Shanghai, 200237, P.R. China

    Wen-Jing Deng, Yu-Xiang Yang & Ya-Ru Chen

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  1. Ming-Chu Pan
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  2. Wen-Jing Deng
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  3. Yu-Xiang Yang
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  4. Ya-Ru Chen
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Correspondence to Yu-Xiang Yang.

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Pan, MC., Deng, WJ., Yang, YX. et al. A study on waterglass aging by determination of oligomers using feasible trimethylsilyl-gas-chromatography method. Glass Phys Chem 36, 110–115 (2010). https://doi.org/10.1134/S1087659610010189

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  • DOI: https://doi.org/10.1134/S1087659610010189

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