Registration Dossier
Registration Dossier
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EC number: 700-363-1 | CAS number: 1335203-20-7
Endpoint summary
Administrative data
Description of key information
Additional information
1 - 10 tonnes of Hydrolysed reaction products of furan-2,5-dione and C15-18-(linear and branched)-alkenes is imported into Europe per annum. The data requirements for this tonnage band require that a Ready Biodegradability test is carried out on the substance.
Therefore, a study was performed to assess the ready biodegradability of the test material in an aerobic aqueous medium. The test material, at a concentration of 10 mg carbon/L, was exposed to activated sewage sludge micro-organisms with culture medium in sealed culture vessels in the dark at approximately 21°C for 28 days. Following the recommendations of the International Standards Organisation (ISO 1995) and the published literature (Handley et al.,2002), the test material was adsorbed onto granular silica gel prior to dispersion in the test medium to aid dispersion of the test material in the test medium and to increase the surface area of the test material exposed to the test organisms. The degradation of the test material was assessed by the determination of carbon dioxide produced. Control solutions with inoculum and the standard material, sodium benzoate, together with a toxicity control were used for validation purposes.
The test material attained 22 % degradation after 28 days and therefore cannot be considered readily biodegradable under the strict terms and conditions of OECD Guideline No. 301 B.
Hydrolysed reaction products of furan-2,5-dione and C15-18-(linear and branched)-alkenes biodegraded by 22 % over 28 days. Although this is not considered readily biodegradable it is estimated that the substance will continue to biodegrade over time.
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