Colloid chemistry of kaolinitic tropical soils

J. Chorover, G. Sposito

Research output: Contribution to journalArticlepeer-review

30 Scopus citations


Highly weathered soils of the humid tropics may exhibit loss of aggregate stability and dispersion of hydroxyl-bearing soil constituents as a result of management-induced changes in soil solution chemistry. The effects of pH and 1:1 "indifferent' electrolyte concentration on the surface charge and flocculation of colloids extracted from four representative kaolinitic tropical soils were examined by microelectrophoresis and light scattering methods. The pH and ionic strength dependence of colloidal stability observed for the soils is consistent with an electrostatic stabilization mechanism among their clay-sized particles. -Authors

Original languageEnglish (US)
Pages (from-to)1558-1564
Number of pages7
JournalSoil Science Society of America Journal
Issue number6
StatePublished - 1995

ASJC Scopus subject areas

  • Soil Science


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