HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Bloom, P. R. Search for Related Content PubMed Articles by Bloom, P. R. Agricola Articles by Bloom, P. R.

Titration Behavior of Aluminum Organic Matter¹

ABSTRACT

An Aluminum (Al)-substituted peat containing one equivalent of Al³⁺ per equivalent of carboxyl groups was titrated potentiometrically in a range of NaCl concentrations. The family of titration curves generated was similar to that obtained with many acid soils. Comparison of the data from the Al-peat with soils having a similar pH (3.9) at the apparent zero point of charge showed that the contribution of Al organic matter to H⁺ and OH^- adsorption during potentiometric titrations is likely very significant and that Al on organic matter likely influences the displacement of the apparent zero point of charge from the zero point of titration.

¹ Paper no. 10,401 Scientific Journal Series, Minnesota Agric. Exp. Stn., Univ. of Minnesota, St. Paul, MN 55108.

² Assistant Professor of Soil Science, Dep. of Soil Science, Univ. of Minnesota, St. Paul, MN 55108.

Received for publication July 20, 1978. Accepted for publication April 16, 1979.

This article has been cited by other articles:

				C. B. Godsey, G. M. Pierzynski, D. B. Mengel, and R. E. Lamond Changes in Soil pH, Organic Carbon, and Extractable Aluminum from Crop Rotation and Tillage Soil Sci. Soc. Am. J., May 16, 2007; 71(3): 1038 - 1044. [Abstract] [Full Text] [PDF]