Registration Dossier
Registration Dossier
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EC number: 221-201-1 | CAS number: 3030-47-5
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
The NOEC from Respiration inhibition tests OECD 209 (1984) was 1000 mg/L (30min) and the EC20 was established as more than 1000mg/L (BASF, 1991). The result from study performed at BASF, 1991 was used for PNEC derivation. In this case sludge from a municipal wwtp was used as inoculum to be in compliance with the guidance; NOEC (30 min) was established as 1000 mg/L.
Key value for chemical safety assessment
- EC10 or NOEC for microorganisms:
- 1 000 mg/L
Additional information
The result of NOEC value more than 660 mg/L (30 min) is from a study performed according to OECD Guideline 209 (Activated Sludge, Respiration Inhibition Test) at BASF in 1987. However, activated sludge from an industrial wwtp was used instead of sludge from a wwtp treating domestic sewage. Therefore, the results from another OECD 209-test from BASF, 1991 were used for PNEC derivation.
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