Infrared Spectroscopic Analyses of Transformations of Chemical Species on the Silica Highly-Reacted with Gaseous BF3.

YOSHIDOME Toshifumi, DANG Zhongyuan, MORROW Barry A.

doi:10.2116/analsci.19.429

Infrared Spectroscopic Analyses of Transformations of Chemical Species on the Silica Highly-Reacted with Gaseous BF3.

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YOSHIDOME Toshifumi

Department of Applied Chemistry and Chemical Engineering, Faculty of Engineering, Kagoshima University
DANG Zhongyuan

Department of Chemistry, University of Ottawa
MORROW Barry A.

Department of Chemistry, University of Ottawa

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説明

Transformations of chemical species formed by the reaction of gaseous BF₃ with high pressure and silica preheated at 473 and 1093 K were studied with the use of infrared absorption spectrometry. The species containing -BF₂ and the species containing>BF were transformed to each other on the highly-reacted silica depending on the pressure of BF₃ in cell, and some of the species containing -BF₂ were also desorbed without their transformations to the species containing>BF. H₂O played important roles in these transformations.