Abstract
DURING the development of a platinum-alumina catalyst, X-ray studies have revealed that, in addition to the well-known gibbsite and bayerite, a third crystalline form of Al(OH)3 exists. Pure samples of this new trihydrate have not been obtained. It is generally accompanied by bayerite, often by both bayerite and gibbsite. In samples where this new crystalline trihydrate is the major component, it has been possible to determine its chemical composition as Al(OH)3 and to resolve its X-ray diffraction pattern. This pattern of the new phase (as recorded with a Geiger counter spectrometer using copper Kα radiation) is:
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
Receive 51 print issues and online access
$199.00 per year
only $3.90 per issue
Buy this article
- Purchase on Springer Link
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
Similar content being viewed by others
References
Megaw, H., Z. Kryst., 87, 185 (1934).
Unmack, A., abstracts of papers at Stockholm meeting of International Union of Crystallography, June 1951; also private communication.
Frank, F. C., Phil. Mag., 42, 1014 (1951).
Vand, V., Nature, 168, 783 (1951).
Stumpf, H. C., Russell, A. S., Newsome, J. W., and Tucker, C. M., Indust. Eng. Chem., 42, 1398 (1950).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
VAN NORDSTRAND, R., HETTINGER, W. & KEITH, C. A New Alumina Trihydrate. Nature 177, 713–714 (1956). https://doi.org/10.1038/177713a0
Issue Date:
DOI: https://doi.org/10.1038/177713a0
This article is cited by
-
Optimized hydrogen positions for aluminium and iron containing hydroxide minerals
Journal of Materials Science (2007)
-
New atomic scale simulation models for hydroxides and oxyhydroxides
Journal of Materials Science (2006)
-
Zur Struktur von Nordstrandit Al(OH)3
Die Naturwissenschaften (1966)
-
Nordstrandite in Soil from West Sarawak, Borneo
Nature (1962)
-
Nordstrandite from Guam
Nature (1962)
Comments
By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.