Registration Dossier
Registration Dossier
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EC number: 222-182-2 | CAS number: 3380-34-5
Biodegradation in soil
Administrative data
Link to relevant study record(s)
Description of key information
Key value for chemical safety assessment
Additional information
Biodegradation in soil under aerobic conditions was investigated in a guideline study conducted in compliance with OECD 307. Degradation in three different soil types was investigated at 20 °C (sandy loam, clay loam, loam). Aerobic degradation of the substance in soil resulted primarily in formation of methyl-Triclosan. The half live of methyl-Triclosan was 96.7 days in sandy loam, 153 days in clay loam and 39.2 days in loam (Ciba Specialty Chemicals 2007). In a second study on biodegradation in soil following U.S. FDA Technical Assistance Document, Section 3.12 a half live of Triclosan in silt loam of 35.2 days, in loam of 29.1 days and in sandy loam of 14.7 days was reported (Colgate-Palmolive Company 1994).
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