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Coprecipitation of titanium(IV) and Iron(III) complex salts from peroxide-fluoride solutions

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Abstract

Because the salts (NH4)3TiO2F5 and (NH4)3FeF6 are isostructural, precipitation of the titanium peroxy salt from the (NH4)2TiF6-(NH4)3FeF6-NH4F-H2O2 system is accompanied by crystal-chemical substitution of ions. As a result of partial peroxolysis, the iron salt coprecipitates with ammonium peroxypentafluorotitanate. If the degree of precipitation is higher than 20%, TiO2 samples of high whiteness can be prepared from the hydrolysis product isolated from such solutions, after annealing at 850°C.

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Authors and Affiliations

  1. Institute of Chemistry, Far-Eastern Branch, Russian Academy of Sciences, pr. 100-letiya Vladivostoka 159, Vladivostok, 690022, Russia

    N. G. Bakeeva, P. S. Gordienko & E. V. Pashnina

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  1. N. G. Bakeeva
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  2. P. S. Gordienko
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  3. E. V. Pashnina
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Correspondence to N. G. Bakeeva.

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Original Russian Text © N.G. Bakeeva, P.S. Gordienko, E.V. Pashnina, 2008, published in Zhurnal Obshchei Khimii, 2008, Vol. 78, No. 4, pp. 544–548.

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Bakeeva, N.G., Gordienko, P.S. & Pashnina, E.V. Coprecipitation of titanium(IV) and Iron(III) complex salts from peroxide-fluoride solutions. Russ J Gen Chem 78, 527–531 (2008). https://doi.org/10.1134/S107036320804004X

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  • DOI: https://doi.org/10.1134/S107036320804004X

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