Abstract
The Chelyabinsk meteorite sample of type LL5 was subjected to calcination in the specially constructed instrument in the temperature range 200–800°C in increments of 100°C. The composition of the obtained volatile constituents was examined on a chromatograph. Detected were: CO2, H2O, and N2 in concentrations of 5–40 μg/g of the sample; H2, CO, CH4, and H2S in concentrations of 0.1–2.0 μg/g. By observing changes in the selected component concentrations over time (up to 90 minutes), it was concluded that chemical reactions in the system between volatile components occur directly during outgassing.
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Acknowledgements
The study was supported by the Russian Science Foundation (project no. 17-17-01279).
The authors are deeply grateful to Yakovlev Oleg Ivanovich for providing a sample of the Chelyabinsk meteorite, as well as for constructive comments when writing this work.
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Russian Text © The Author(s), 2019, published in Astronomicheskii Vestnik, 2019, Vol. 53, No. 3, pp. 214–223.
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Stennikov, A.V., Voropaev, S.A., Fedulov, V.S. et al. Experimental Study of the Product Composition of the Chelyabinsk Meteorite (LL5) Outgassing. Sol Syst Res 53, 199–207 (2019). https://doi.org/10.1134/S0038094619030055
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DOI: https://doi.org/10.1134/S0038094619030055