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EC number: 500-191-5 | CAS number: 68082-29-1
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Toxicity to microorganisms
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Link to relevant study record(s)
Description of key information
OECD 209 Activated sludge respiration inhibition EC50 384 mg/L, EC10 130 mg/L.
Key value for chemical safety assessment
- EC50 for microorganisms:
- 384 mg/L
- EC10 or NOEC for microorganisms:
- 130 mg/L
Additional information
The toxicity of the test item TOFA_DimerFA_TETA_PAA (batch no.: BB 001030 V1) to activated sludge was determined in accordance with OECD Test Guideline 209 at Akzo Nobel, Arnhem, The Netherlands.
The toxicity of TOFA_DimerFA_TETA_PAA to activated sludge was determined at a contact time of 3 hours, using various concentrations of the test substance.
The EC50of TOFA_DimerFA_TETA_PAA for activated sludge after 3 hours contact time is 384 mg/L. The EC10, EC20and EC80are 130, 188 and 781 mg/L, respectively.
TOFA_DimerFA_TETA_PAA is therefore considered not harmful to activated sludge.
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