Registration Dossier
Registration Dossier
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EC number: 200-751-6 | CAS number: 71-36-3
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
Readily biodegradable (according to OECD criteria)
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
Several studies have been conducted to assess the biodegradation of butan-1 -ol in water and treated sewage. A test was conducted using American Public health Association (APHA) Standard Methods (Price et al. 1974). The 20 day BOD (Biochemical Oxygen Demand) test was conducted using unacclimated settled domestic wastewater as the microbial seed (3 mL/BOD bottle). The results showed a BOD5 of 68 % ThOD (percent of theoretical oxygen demand), a BOD10 of 87 % ThOD, a BOD15 of 92 % ThOD, and a BOD20 of 92 % ThOD. The OECD criteria for ready biodegradability (60 % BOD of ThOD, 10 day window) were fullfilled. Therefore, butan-1-ol is ready biodegradable (see also: OECD 2005, ECETOC 2003). Furthermore, this study is supported by several other studies that measured BOD using a variety of sources of microbial seed, including artificial seawater, and other sewage seeds (e.g. Dow 1975, Huels 1996).
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