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Variation of the composition of the polymerization products of Al(III) aquo ions with the initial solution concentration

  • Inorganic Chemistry
  • Published:
Bulletin of the Academy of Sciences of the USSR, Division of chemical science Aims and scope

Conclusions

  1. 1.

    At the same ratio of the added base to the metal (ϰ = 1.9) the composition of the polynuclear complexes and the ratio between them strongly depend on the Al(III) aquo ion concentration in the initial solution.

  2. 2.

    In specimens with an Al(III) concentration of 0.1–0.4 mole/liter the bulk of the aluminum is contained in a polynuclear hydroxo complex of Al13 of the composition Al13O4-(OH)24(H2O) 7+12

  3. 3.

    In concentrated solutions (≥1 mole/liter) an Al13 hydroxo complex is not formed and 80–90% of the aluminum is combined in polynuclear complexes corresponding in properties to sol particles.

  4. 4.

    Polynuclear complexes of Al13 and Alq can coexist in solutions for a long time.

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Authors and Affiliations

  1. Institute of Catalysis, Siberian Branch of the Academy of Sciences of the USSR, Novosibirsk

    M. A. Fedotov, O. P. Krivoruchko & R. A. Buyanov

Authors
  1. M. A. Fedotov
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  2. O. P. Krivoruchko
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  3. R. A. Buyanov
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Additional information

Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 10, pp. 2183–2186, October, 1977.

We would like to thank V. M. Mastikhin and E. N. Yurchenko for helpful discussion of the results.

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Fedotov, M.A., Krivoruchko, O.P. & Buyanov, R.A. Variation of the composition of the polymerization products of Al(III) aquo ions with the initial solution concentration. Russ Chem Bull 26, 2021–2024 (1977). https://doi.org/10.1007/BF00923612

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  • DOI: https://doi.org/10.1007/BF00923612

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