Registration Dossier
Registration Dossier
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EC number: 619-635-5 | CAS number: 12567-73-6
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Biodegradation in water: key study: results from a study report leading to the conclusion that Zirkonium-tetrakis(isobutyrato) is readily biodegradable.
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
Key study: experimental results from a study report, according to Part C.4-C of the EC Commission Directive 92/69/EEC and in the OECD Guideline 301B. Results showed that:
- The reference substance sodium benzoate was degraded by 81.2 % within 10 days.
- Degradation in the toxicity control, which contained sodium benzoate and the test substance, was not indicative of an inhibition of the microbial activity by the test substance.
- The carbon dioxide evolution from Zirkonium-tetrakis(isobutyrate) with a nominal concentration of 15 mg Carbon/L reached a maximum of 87.5 % after 28 days of incubation at 22.8 ± 0.3 °C, i. e. the substance was degraded within 28 d. The percentage degradation of the test substance exceeded 60 % within ten days of first reaching 10 %.
It is concluded that Zirkonium-tetrakis(isobutyrato) is readily biodegradable.
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