Biological Degradation of Complex Iron Cyanides in Natural Aquatic Systems

KL Cherryholmes; WJ Cornils; DB McDonald; RC Splinter

doi:10.1520/STP36286S

SYMPOSIA PAPER Published: 01 January 1985

STP36286S

Biological Degradation of Complex Iron Cyanides in Natural Aquatic Systems

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Iron cyanide complexes have been considered to be very stable when protected from light. However, it was observed in the current study that when aqueous solutions of potassium hexacyanoferrate (III) were seeded with bacteria, concentrations of free cyanide were detected within four days which were as much as 88 times greater than those observed in sterile control solutions. This is significant in terms of aquatic toxicology, since the 200 to 250 µg/L LC₅₀ value for free cyanide for many fish species was exceeded.

Author Information

Cherryholmes, KL

Bruce A. Liesch Associates Inc., Iowa City, Iowa

Cornils, WJ

Marc Island Naval Shipyard, Vallejo, Calif

McDonald, DB

The University of Iowa, Iowa City, Iowa

Splinter, RC

University Hygienic Laboratory, The University of Iowa, Iowa City, Iowa

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Details

Developed by Committee: E47

Pages: 502–511

DOI: 10.1520/STP36286S

ISBN-EB: 978-0-8031-4922-9

ISBN-13: 978-0-8031-0410-5

Biological Degradation of Complex Iron Cyanides in Natural Aquatic Systems

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