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Layered double hydroxide stability. 1. Relative stabilities of layered double hydroxides and their simple counterpartsSolutions containing di- and trivalent metal chlorides [M(II) = Mg2+, Zn2+, Co2+, Ni2+, Mn2+; M(III) = Al3+, Fe3+] were titrated with NaOH to yield hydrotalcite-like layered double hydroxides (LDH), [[M(II)]1-x[M(III)]x(OH)2][Cl]x yH2O, by way of M(III) hydroxide/hydrous oxide intermediates. Analysis of the resultant titration curves yields nominal solubility constants for the LDH. The corresponding LDH stabilities are in the order Mg < Mn < Co approximately Ni < Zn for M(II) and Al < Fe for M(III). The stability of LDH relative to the separate metal hydroxides/hydrous oxides is discussed.
Document ID
20040089021
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Boclair, J. W. (University of North Texas Denton 76203-5070, United States)
Braterman, P. S.
Date Acquired
August 21, 2013
Publication Date
January 1, 1999
Publication Information
Publication: Chemistry of materials : a publication of the American Chemical Society
Volume: 11
Issue: 2
ISSN: 0897-4756
Subject Category
Exobiology
Funding Number(s)
CONTRACT_GRANT: NAGW-4620
Distribution Limits
Public
Copyright
Other
Keywords
Non-NASA Center
NASA Discipline Exobiology