Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 609-463-9 | CAS number: 376653-41-7
The test item is considered not readily biodegradable.
The test item BAL0001026 was investigated for its ready biodegradability in a Closed Bottle Test over a period of 28 days. The biodegradation was evaluated based on the oxygen uptake of the microorganisms during exposure. As a reference item Sodium benzoate was tested simultaneously under the same conditions as the test item, and functioned as a procedure control.
The test system was a microbial inoculum collected from a sewage plant processing domestic sewage. The sludge was allowed to settle and then aerated until being used.
Under the test conditions the percentage biodegradation of BAL0001026 reached a mean of 7.4 % after 28 days based on the theoretical oxygen demand (ThOD) of active substance of the test item. According to the test guidelines the pass level for ready biodegradability is removal of 60 % ThOD. Therefore the test item is considered not readily biodegradable.
The toxicity of BAL0001026 on secondary microorganisms in the effluent was also investigated. In the toxicity control containing both, the test item and the reference item Sodium benzoate, a mean of 35.9 % biodegradation was noted within 14 days and 39.5 % biodegradation after 28 days of incubation.
According to the test guidelines the test item can be assumed to be not inhibitory at the applied concentration level of 2.5 mg active substance/L (equivalent to 2.9 mg test item /L) on the secondary effluent microorganisms because degradation was >25 % within 14 days.
The test item was not considered to have significant inhibitory effects on the secondary effluent microorganisms.
Based on the results of this study, the test item is considered not readily biodegradable.
[Type of water: freshwater]
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
Welcome to the ECHA website. This site is not fully supported in Internet Explorer 7 (and earlier versions). Please upgrade your Internet Explorer to a newer version.
Close Do not show this message again