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Reduction of the cation-exchange capacity of montmorillonite by take-up of hydroxy-Al polymers.
Year:
1986
Source of publication :
Clays and Clay Minerals
Authors :
Keren, Rami
;
.
Volume :
34
Co-Authors:
Keren, R.
Facilitators :
From page:
534
To page:
538
(
Total pages:
5
)
Abstract:
The c.e.c. of Na-Al- and Ca-Al-montmorillonites after neutralization with NaOH or Ca(OH)2 was studied. At low levels of Al (10-50% of the c.e.c.) the c.e.c. of montmorillonite at pH 7.5 was reduced due to hydroxy-Al precipitation. The c.e.c. of soils exposed to rainfall may be reduced due to clay dissolution and hydroxy-Al interlayer formation, thus changing clay dispersion and soil permeability. -R.A.H. Inst. of Soils & Water, Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel.
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DOI :
Article number:
0
Affiliations:
Database:
Scopus
Publication Type:
Language:
English
Editors' remarks:
ID:
32694
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 01:11
Scientific Publication
Reduction of the cation-exchange capacity of montmorillonite by take-up of hydroxy-Al polymers.
34
Keren, R.
Reduction of the cation-exchange capacity of montmorillonite by take-up of hydroxy-Al polymers.
The c.e.c. of Na-Al- and Ca-Al-montmorillonites after neutralization with NaOH or Ca(OH)2 was studied. At low levels of Al (10-50% of the c.e.c.) the c.e.c. of montmorillonite at pH 7.5 was reduced due to hydroxy-Al precipitation. The c.e.c. of soils exposed to rainfall may be reduced due to clay dissolution and hydroxy-Al interlayer formation, thus changing clay dispersion and soil permeability. -R.A.H. Inst. of Soils & Water, Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel.
Scientific Publication
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