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Decomposition of Bentonite as Influenced by adsorbed Hydrogen and Calcium Plus Grinding
Author(s) -
Perkins A. T.,
Draggsdorf R. D.
Publication year - 1951
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/sssaj1951.036159950015000c0019x
Subject(s) - decomposition , bentonite , citation , grinding , hydrogen , chemistry , library science , computer science , chemical engineering , materials science , engineering , organic chemistry , metallurgy
S clay minerals have been divided into several groups, including the kaolin and montmorillonite groups, -by Marshall (6). These two groups of clay minerals are of great importance in soils as they affect the fertility and physical condition of the soil. These clays differ greatly in their chemical and physical properties, but they are quite similar in chemical composition and layer structure. Kaolin has a low base exchange capacity and swells only to a slight extent when wet with water, while montmorillonite has a high base exchange capacity and swells to a much greater extent. It may be assumed from a soil fertility viewpoint that montmorillonite is the more desirable clay mineral, and soil conditions that tend to preserve or form montmorillonite are of interest to all soil scientists.