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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