A route for synthesis of microcrystalline gibbsite in Na+ free medium

Gibbsite hexagonal platy microcrystals were prepared in aqueous medium in the absence of sodium and alkaline cations. Iodine and aluminium in several conditions of particle size and shape, temperature, and reaction time were tried in order to obtain a reaction of the aluminium with water. Alcoa 123...

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Bibliographic Details
Published inJournal of materials science letters Vol. 19; no. 17; pp. 1525 - 1527
Main Authors SOUZA SANTOS, H, KIYOHARA, P. K, SOUZA SANTOS, P
Format Journal Article
LanguageEnglish
Published Dordrecht Kluwer Academic Publishers 01.09.2000
Subjects
Chemistry
Elements and non-metal compounds (oxides, hydroxides, hydrides, sulfides, carbides, ...)
Exact sciences and technology
Inorganic chemistry and origins of life
Preparations and properties
Aluminium Hydroxides
Experimental study
Microcrystal
Chemical preparation
Gibbsite
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Summary:Gibbsite hexagonal platy microcrystals were prepared in aqueous medium in the absence of sodium and alkaline cations. Iodine and aluminium in several conditions of particle size and shape, temperature, and reaction time were tried in order to obtain a reaction of the aluminium with water. Alcoa 123 uncoated aluminium powder was the best form of aluminium for the reaction and pure microcrystals of gibbsite were prepared in the temperature range of 50-60 C. Selected area electron diffraction confirmed the gibbsite structure of the microcrystals formed. 20 refs.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:0261-8028
DOI:10.1023/A:1006708602621