Registration Dossier
Registration Dossier
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EC number: 219-553-6 | CAS number: 2461-15-6
Endpoint summary
Administrative data
Description of key information
Additional information
Study reports are available for the ready biodegradability test, hydrolysis as a function of pH (read-across) and adsorption/desorption test (read-across). The results are summarized as below:
The ready biodegradability test was performed according to OECD guideline No. 301F under GLP compliance. The test item attained 0 % degradation after 28 days and therefore, cannot be considered as readily biodegradable under the strict terms and conditions of OECD Guideline No. 301F.
Based on the results of n-butyl glycidyl ether (CAS No. 2426-08-6), the hydrolysis half-life values were 0.3 hours at pH 4 (20 °C), 20 days at pH 7 (20 °C), and stable at pH 9. 2-Ethylhexyl glycidyl ether (EC# 219-553-6) has similar properties and thus, can be considered having similar half-life values. These values indicate the hydrolysis rate of 2-ethylhexyl glycidyl ether is rapid under acidic conditions and moderate to slow at neutral and alkaline pH.
The adsorption coefficient of oxirane, mono[(C12-14-alkyloxy)methyl] derivs. was estimated to be log KOC >5.63 (KOC >426580) using the HPLC method. Therefore, it can be expected that 2-ethylhexyl glycidyl ether has a similar or lower adsorption coefficient due to its shorter and branched alkyl chain. Hence, the log KOC value of >5.6 as read-across from oxirane, mono[(C12-14-alkyloxy)methyl] derivs. can be considered as a conservative worst case value for the source substance 2-ethylhexyl glycidyl ether, indicating that it will be adsorbed by organic carbon in soil and can be considered to be immobile according these study results.
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