Salient features of infrared spectral analysis of a glass-forming batch containing boric and silicic acids
Source abstract
Abstract
The results of IR spectroscopy of boric and silicic acids, which are the main components of the batch for fabricating microspheres, are presented. It is proved that the structure of boric and silicic acids contain water in molecular form (crystal-hydrate) and as OH groups, respectively. A formula is given for calculating the absolute degree to which the bands differ with respect to wave number and intensity. It is shown that half of the spectral bands of both acids can be used only conditionally to indentify the acids, and almost a third of these bands are the main (strongest) bands. The bands at 1195 cm−1 in the spectrum of boric acid and 1180 and 1200 cm−1 in the spectrum of silicic acid are indistinguishable with respect to position and intensity and cannot be used for analysis. The wave number is a necessary and sufficient indicator for identifying the acids in the mix, but in the case of the conditionally used bands analysis of a mixture of acids is impossible if their intensity is neglected.
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OpenAlex topics: Material Science and Thermodynamics
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References (13)
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