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Dehydration of Fractal Particles of Iron (III) and Aluminum Hydroxides

Published online by Cambridge University Press:  10 February 2011

A. A. Vertegel ,
S. V. Kalinin ,
N. N. Oleynikov  and
Yu. D. Tretyakov
A. A. Vertegel
Affiliation:
Dept. of Chemistry, Moscow State University, 119899, Moscow, Russia, oleg@tret.chem.msu.su
S. V. Kalinin
Affiliation:
Dept. of Chemistry, Moscow State University, 119899, Moscow, Russia, oleg@tret.chem.msu.su
N. N. Oleynikov
Affiliation:
Dept. of Chemistry, Moscow State University, 119899, Moscow, Russia, oleg@tret.chem.msu.su
Yu. D. Tretyakov
Affiliation:
Dept. of Chemistry, Moscow State University, 119899, Moscow, Russia, oleg@tret.chem.msu.su
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Abstract

The kinetic behavior of Fe(OH)3 and AI(OH)3 powders during thermal dehydration is investigated. It has been shown that the dehydration rate is governed by the value of fractal dimension of the sample without any respect to the nature of metal atom in hydroxide. The quantitative model for dehydration of fractal particles with particular value of fractal dimension is suggested. Theoretical predictions are in a good agreement with experimental data.

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References

REFERENCES

1. Vertegel, A.A., Kalinin, S.V., Oleynikov, N.N., Tretyakov, Yu.D., The fractal particles of iron (III) hydroxonitrate: from solution to solid state, Journal of Non-Crystalline Solids, 181 (1995), 146–150.Google Scholar
2. Harrison, A., Fractals in Chemistry (Oxford University Press, Oxford, 1995) p. 66 Google Scholar
3. Blakemore, R., Physics of Solid State, “Mir”, Moscow, 1991, pp. 65–68 (in Russian).Google Scholar