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Electrochemistry of tropical soils with variable charge. I Influence of organic matter on the equilibrium time for determination of the potentiometric titration curves


Revista Brasileira de Ciencia do Solo 14(1): 7-11
Electrochemistry of tropical soils with variable charge. I Influence of organic matter on the equilibrium time for determination of the potentiometric titration curves
The effects of organic matter on the equilibrium time in the determination of the point of zero charge were studied, using samples of the A1, A3 and B2 horizons of a Red Yellow Latosol (Ferralsol) containing 3.77, 2.73 and 0.59% organic C resp. The samples were placed in 1, 10-1, 10-2 and 10-3 M NaCl solutions and equilibrium times of 6, 24, 72 and 168 h were tested.


Accession: 002095031



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