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Oxidative polymerization of dissolved phenols by soluble and insoluble inorganic species 1
Author(s) -
Larson Richard A.,
Hufnal John M.
Publication year - 1980
Publication title -
limnology and oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 197
eISSN - 1939-5590
pISSN - 0024-3590
DOI - 10.4319/lo.1980.25.3.0505
Subject(s) - catechol , chemistry , polymerization , pyrogallol , phenols , manganese , ultrafiltration (renal) , polymer , inorganic chemistry , metal , dissolved organic carbon , environmental chemistry , nuclear chemistry , organic chemistry , chromatography
Transition metal oxides (MnO 2 , ZnO, CuO) and cations (Mn 2+ , Fe 3+ ) promoted the polymerization of dissolved catechol (1,2‐dihydroxybenzene) and other catechol and pyrogallol derivatives. The manganese species were the most efficient. Colored polymers were formed from catechol much more rapidly in stream waters than in deionized water buffered to the same pH. Addition of sediments or clays increased polymerization; addition of EDTA or lowering the pH reduced it. Ultrafiltration or autoclaving of the stream water samples had no significant effect. The mechanism appears to incorporate an activation of dissolved O 2 to a more reactive species, probably •OH.