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 language | English (US) |
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Pages (from-to) | 1619-1623 |
Number of pages | 5 |
Journal | Russian Journal of Inorganic Chemistry |
Volume | 48 |
Issue number | 11 |
State | Published - Nov 2003 |
Externally published | Yes |
ASJC Scopus subject areas
- Materials Science (miscellaneous)
- Physical and Theoretical Chemistry
- Inorganic Chemistry