Molecular size effects on carboxyl acidi
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S.H. Sutheimer; M.J. Ferraco; S.E. Cabaniss
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Article
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1995
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Elsevier Science
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English
β 783 KB
Models of carboxyl acidity frequently applied to humic substances (HS) are examined by potentiometric titrations of polycarboxylic acids of intermediate size (N = number of acid groups = 3-70). The unique properties of these acids are not well described by extrapolation from small (N = 1 or 2) or la