Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

There are numerous reports of aerobic and anaerobic/anoxic micro-organisms and treatment systems able to degrade cyanide, as reviewed in ECETOC’s JACC, No. 53, 2007.   Non-toxic concentrations of cyanide can be readily biodegraded, both aerobically and anaerobically. Degradation of cyanides by bacteria in sewage treatment plants depends on the availability of micro-organisms adapted to the presence of cyanide for about two weeks. Sudden high levels of cyanide in these sewage plants may lead to a loss of viability, while fully adapted sludge may tolerate and degrade concentrations up to 100 to 150 mg CN/l with a high degree of efficiency.