CHEMICAL DISTINCTION OF HYDROUS OXIDE-TYPE SURFACES IN SOILS Ⅰ.SURFACE CHARGE
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Abstract:
The present papa deals with the contribution of hydrous oxides to surface charges of soils,clays and synthetic amorphous aluminosilicates.The results of experiments showed that hydrous oxide-type surfaces could be divided into two sub-groups which had totally different surface churge characteristics.In the studied samples,iron and aluminium oxide were pH-dependent posirive charge surface,silica was pH-dependent negative charge surface.
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