Relevant Soil Charge Components

TABLE 3.7. Examples of Oxides and pH of Point Zero Charge 

Uehara (1986) presented evidence that weak specific adsorption also has an influence on variable charge surfaces. 

Attempts to model soil-metal adsorption behavior using the double-layer model have not been adequate (Van Raij and Peeeh, 1972). The reason is that in the 

Nx = number of available sites Na = Avogadro s number q = is the density of the solvent M = molecular weight of solvent 

6 = Specific adsorption potential 3p0 = Surface potential = Stern potential O = Stern layer charge CJ2 = Diffuse layer charge 

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