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Preparing particulate magnetites with pigment properties from suspensions of basic iron(III) sulphates with the structure of jarosite

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Abstract

The transformation of a suspension of hydronium jarosite, H3O+Fe3(SO4)2(OH)6, into Fe3O4 (magnetite) of pigment quality is described. The process consists in the neutralization of the hydronium jarosite suspension in FeSO4 aqueous solutions with NH3 and subsequent thermal treatment of this mixture at controlled pH and temperature.

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Authors and Affiliations

  1. The Czech and Slovak Academy of Sciences, Institute of Inorganic Chemistry, 250 68, Řež, Czech Republic

    J. Boháček, J. Šubrt, T. Hanslík & J. Tláskal

Authors
  1. J. Boháček
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  2. J. Šubrt
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  3. T. Hanslík
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  4. J. Tláskal
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Boháček, J., Šubrt, J., Hanslík, T. et al. Preparing particulate magnetites with pigment properties from suspensions of basic iron(III) sulphates with the structure of jarosite. JOURNAL OF MATERIALS SCIENCE 28, 2827–2832 (1993). https://doi.org/10.1007/BF00356226

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  • DOI: https://doi.org/10.1007/BF00356226

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