Magnesium aluminum hydroxosulfates with a layered structure

Authors
Krasnobaeva, ON Nosova, TA Elizarova, TA Danilov, VP
Citation
On. Krasnobaeva et al., Magnesium aluminum hydroxosulfates with a layered structure, RUSS J IN C, 46(6), 2001, pp. 799-801
Citations number
6
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
RUSSIAN JOURNAL OF INORGANIC CHEMISTRY
ISSN journal
00360236 → ACNP
Volume
46
Issue
6
Year of publication
2001
Pages
799 - 801
Database
ISI
SICI code
0036-0236(200106)46:6<799:MAHWAL>2.0.ZU;2-W
Abstract
Two layered magnesium aluminum hydroxosulfates- [Mg0.4-xAl2(OH)(6)][(SO4)(0 .4-x) . nH(2)O] (I) and [Mg1.5 + xAl(OH)(5 + 2x)][(SO4)(0.5) . nH(2)O] (II) -were obtained by reacting a sodium hydroxide solution with solutions conta ining magnesium and aluminum sulfates. The X-ray powder diffraction pattern s of I and IT were indexed in the hexagonal system with a = 2.94 Angstrom a nd c = 26.55 Angstrom for I and n = 3.02 Angstrom and c = 26.55 Angstrom fo r II. As suggested by X-ray powder diffraction data, I is isostructural to lithium aluminum hydroxosulfate [Li1 - xAl2(OH)(6)][(SO4)(0.5(1 - x)) . nH( 2)O] and II is isostructural to synthetic hydrotalcites [Mg6-xAl2(OH)(16-2x )][(SO4) . nH(2)O].