IRON(III) REDUCTION BY NATURAL HUMIC ACIDS - A POTENTIOMETRIC AND SPECTROSCOPIC STUDY
Academic Article
Publication Date:
1995
Short description:
IRON(III) REDUCTION BY NATURAL HUMIC ACIDS - A POTENTIOMETRIC AND SPECTROSCOPIC STUDY / Deiana, S.A., Gessa, C., Manunza, B., Rausa, R., Solinas, V.. - In: EUROPEAN JOURNAL OF SOIL SCIENCE. - ISSN 1351-0754. - 46:1(1995), pp. 103-108.
abstract:
The reduction of iron(III) by natural humic acid (NHA) was studied in aqueous solution as a function of pH, time and iron(III) concentration. The information gained from FTIR and ESR spectroscopies as well as potentiometric data suggests that redox reactions occur at a low pH due to the involvement of phenolic groups and radicals. At pH values higher than 3.5 the reaction is strongly inhibited by the formation of iron(III)-humate complexes.
Iris type:
1.1 Articolo in rivista
Keywords:
D-GALACTURONIC ACID; METAL-IONS; RELEASE
List of contributors:
Deiana, Salvatore Andrea; Gessa, C; Manunza, B; Rausa, R; Solinas, V.
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