Registration Dossier
Registration Dossier
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EC number: 415-300-0 | CAS number: 90076-65-6 BIS TRIFLUOROMETHANE SULFONIMIDE LITHIUM; FLUORAD BRAND LITHIUM TRIFLUOROMETHANESULPHONIMIDE HQ-115
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
There was 9% of biodegradation after 28 days (DOC removal), in an inherently biodegradation study (302B) and 3% of biodegradation (TOC removal) after 28 days in a readily bidegradation study (301C). These results in both studies showed that Bis trifluoromethanesulfonimide Lithium is not biodegradable.
Key value for chemical safety assessment
- Biodegradation in water:
- under test conditions no biodegradation observed
Additional information
Two experimental studies (Clarke, 2002 and Shimogawa, 1993) were available, scored as Klimish 1 and selected as key studies. They were performed in compliance with GLP and according to the OECD guidelines.
The first study was performed to assess the inherent biodegradability of the test material in an aerobic aqueous media, according to the OECD 302B guideline and under GLP conditions. The test material, at a concentration of approximately 100 mg C/L was exposed to activated sewage sludge micro-organisms with culture medium in the dark at 22 ± 1°C for 28 days. The degradation of the test material was assessed by the determination of DOC removal. The test material attained 9% degradation after 28 days and therefore cannot be considered to be inherently biodegradable under the terms and conditions of OECD Guideline 302B.
The second study was performed to assess the readily biodegradability of bis trifluoromethanesulfonimide lithium (TFSILi) according to the OECD 301C guideline and under GLP conditions. The test item was exposed to activated sewage sludge from 10 different sites, with culture medium at 25°C during 28 days. The degradation of TFSILi was measured by the determination of TOC removal. TFSILi attained 3% of degradation based on TOC removal after 28 days. In these conditions, TFSILi is not readily biodegradable.
Based on these two studies, TFSILi is not biodegradable.
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