Abstract
Hydrocarbon impurities in silicon tetrafluoride originate from the sodium hexafluorosilicate used as a precursor for the preparation of SiF4 through the thermal decomposition of Na2SiF6. We have studied the fraction of C1–C4 hydrocarbons released as a function of temperature during the thermal decomposition of sodium hexafluorosilicate. The lighter hydrocarbons—methane, ethane, and ethylene—are shown to be released at lower temperatures. One source of hydrocarbon impurities in sodium hexafluorosilicate is the sodium carbonate used to prepare it.
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Original Russian Text © V.A. Krylov, T.G. Sorochkina, A.D. Bulanov, A.Yu. Lashkov, 2012, published in Neorganicheskie Materialy, 2012, Vol. 48, No. 1, pp. 11–13.
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Krylov, V.A., Sorochkina, T.G., Bulanov, A.D. et al. C1–C4 hydrocarbon release in the preparation of SiF4 through Na2SiF6 pyrolysis. Inorg Mater 48, 7–9 (2012). https://doi.org/10.1134/S0020168511120089
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DOI: https://doi.org/10.1134/S0020168511120089