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Title (Primary) Phosphine by bio-corrosion of phosphide-rich iron
Author Glindemann, D.; Eismann, F.; Bergmann, A.; Kuschk, P.; Stottmeister, U.;
Journal Environmental Science and Pollution Research
Year 1998
Department UBT; UBT_alt; SAN;
Volume 5
Issue 2
Language englisch;
Abstract Phosphine is a toxic agent and part of the phosphorus cycle. A hitherto unknown formation mechanism for phosphine in the environment was investigated. When iron samples containing iron phosphide were incubated in corrosive aquatic media affected by microbial metabolites, phosphine was liberated and measured by gas chromatography. Iron liberates phosphine especially in anoxic aquatic media under the influence of sulfide and an acidic pH. A phosphine-forming mechanism is suggested: Phosphate, an impurity of iron containing minerals, is reduced abioticly to iron phosphide. When iron is exposed to the environment (e.g. as outdoor equipment, scrap, contamination in iron milled food or as iron meteorites) and corrodes, the iron phosphide present in the iron is suspended in the medium and can hydrolyze to phosphine. Phosphine can accumulate to measurable quantities in anoxic microbial media, accelerating corrosion and preserving the phosphine formed from oxidation.
ID 8663
Persistent UFZ Identifier
Glindemann, D., Eismann, F., Bergmann, A., Kuschk, P., Stottmeister, U. (1998):
Phosphine by bio-corrosion of phosphide-rich iron
Environ. Sci. Pollut. Res. 5 (2), 71 - 74