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Acid-base properties of two sodium polymethacrylates (W=4000 and 5400 Da) were studied potentiometrically in aqueous solution at 25 o C. Measurements were made in different salt solutions: LiCl 0.1-1.5, NaCl 0.1-2, KCl 0.1-2, Et 4 NI 0.1-0.75 mol l -1 , and in artificial seawater in the salinity range 10=<S=<45. Protonation data were analysed by two different models...
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