Solid-phase interaction of X-ray amorphous aluminas differing in their histories with sodium carbonate

A. A. Danilin, A. S. Sinitskii, V. A. Ketsko, G. P. Murav'eva, N. N. Oleinikov

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Abstract

The solid-phase interaction of X-ray amorphous alumina samples with sodium carbonate at 500-900°C has been studied as affected by the history of an alumina sample. Five procedures were tested for alumina synthesis: the decomposition of Al(NO3)3·9H2O; Al 2(C2O4)3·nH2O; hydroxides prepared by Al3+ ion precipitation from aluminum nitrate or aluminum chloride solutions by concentrated aqueous NH4OH taken in 20% excess; or a hydroxide prepared by freeze-drying of frozen cryogranules of a colloidal aluminum hydroxonitrate solution. The behavior of X-ray amorphous alumina was significantly affected by its chemical history when it was in a solid phase with sodium carbonate.

Original languageEnglish (US)
Pages (from-to)1619-1623
Number of pages5
JournalRussian Journal of Inorganic Chemistry
Volume48
Issue number11
StatePublished - Nov 2003

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ASJC Scopus subject areas

  • Materials Science (miscellaneous)
  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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