Abstract
Potentiometric studies of the neutralization of several fulvic acid sources with standard base in aqueous and nonaqueous media have been conducted. Analysis of the results with a recently developed unified physicochemical model has shown that the protonation behavior of these fulvic acid sources is a reflection of (1) their polyelectrolyte nature and (2) their heterogeneity. It has been possible to ascribe the polyelectrolyte properties observed to a rather inflexible fulvic acid molecule whose variably charged surface is impermeable to simple electrolyte. © 1986, American Chemical Society. All rights reserved.
Original language | English |
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Pages (from-to) | 354-366 |
Journal | Environ. Sci. Technol. |
Volume | 20 |
Issue number | 4 |
DOIs | |
Publication status | Published - 1 Jan 1986 |