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Synthesis and Properties of Thermally Expandable Residual Graphite Hydrosulfite Obtained in the System HNO3-H2SO4

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Abstract

Synthesis of bloating residual graphite hydrosulfide with the use of an oxidizing system, fuming nitric acid-concentrated sulfuric acid, was studied at ultralow expenditure of reagents and their separate introduction into the reaction mass. Important parameters of the process were revealed and their effect on the properties of the target product was determined. Ways to diminish to the maximum possible extent the adverse influence of by-products formed in the stage of graphite oxidation on the properties of the target product were found.

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Authors and Affiliations

  1. National Academy of Sciences of Ukraine, Litvinenko Institute of Physicoorganic and Coal Chemistry, Donetsk, Ukraine

    A. P. Yaroshenko, M. V. Savos'kin, A. N. Magazinskii, V. I. Shologon & R. D. Mysyk

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  1. A. P. Yaroshenko
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  2. M. V. Savos'kin
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  3. A. N. Magazinskii
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  4. V. I. Shologon
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  5. R. D. Mysyk
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Yaroshenko, A.P., Savos'kin, M.V., Magazinskii, A.N. et al. Synthesis and Properties of Thermally Expandable Residual Graphite Hydrosulfite Obtained in the System HNO3-H2SO4 . Russian Journal of Applied Chemistry 75, 861–865 (2002). https://doi.org/10.1023/A:1020351705482

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  • DOI: https://doi.org/10.1023/A:1020351705482

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