Premium
Anion‐Aluminum Hydroxide Gel Interactions
Author(s) -
Serna Carlos J.,
White J. L.,
Hem Stanley L.
Publication year - 1977
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1977.03615995004100050041x
Subject(s) - hydroxide , carbonate , sulfate , inorganic chemistry , chemistry , aluminium , carbonate ion , ion , organic chemistry
The interaction of the nitrate, sulfate, and carbonate anion with aluminum hydroxide gel was studied by infrared spectroscopy. A lowering in the anion symmetry due to the interaction with the aluminum hydroxide surface was observed. Evidence suggests that the nitrate anion interaction is outside of the coordination sphere of the aluminum cation and therefore is mainly electrostatic. However, the sulfate and carbonate anions both show evidence of coordination with the surface aluminum cations. The carbonate interaction appears to be the strongest and is believed to be responsible for the relatively high degree of stability of carbonate‐containing aluminum hydroxide gel.