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: 231-640-0 | CAS number: 7665-72-7
The biodegradation of Tert-Butyl glycidyl ether was studied in a suspension in mineral medium inoculated with activated sludge (30 mg suspended solids/L). The experiment was conducted in accordance with the OECD test guideline 301 F "Manometric Respirometry Test" and in compliance with the OECD-GLP standards.
The system OxiTop®- Control from WTW, Weilheim and the Sensomat-System from Aqualytic GmbH & Co., Langen were used as test systems. They consist of narrow-necked glass bottles with rubber sleeve inserts for NaOH pellets, in which the carbon dioxide evolved is absorbed. The liquid volume was fixed as 164 mL each. Magnetic stir bars were introduced into the bottles which were positioned on a stirrer platform. The bottles were sealed tightly with the measuring heads with a measuring range of 500 – 1350 hPa. Every 112 minutes the current pressure was measured and stored by each measuring head.
Tert-Butyl glycidyl ether never reached the pass level for ready biodegradability (60% ThOD in a 10-day window, which begins when the degree of biodegradation reaches 10%). Only slight degradation of the test item could be observed during the test duration (28 days after acidification).
Table 1 Aeration Test
t-BGE consumed no oxygen in the 20-day BOD test. Due to the deficiencies of the report (no guideline), no clear conclusions on the stability of the substance in terms of biodegradation can be drawn.
t-BGE consumed no oxygen in the 20-day BOD test. Due to the deficiencies of the report (no guideline), no clear conclusions on the stability of the substance in terms of biodegradation can be drawn. Therefore a subsequent OECD biodegradation study has been carried out. In the course of this study the biodegradation of tert-Butyl glycidyl ether (determined according to OECD guideline 301 F) within 28 days was 7 % of ThOD (mean of three replicates). The test item did not reach the criteria for ready biodegradability (60 % ThOD within a 10-d window).
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