Registration Dossier
Registration Dossier
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EC number: 230-392-0 | CAS number: 7087-68-5
Toxicity to microorganisms
Administrative data
Link to relevant study record(s)
Description of key information
Key value for chemical safety assessment
- EC50 for microorganisms:
- 912 mg/L
- EC10 or NOEC for microorganisms:
- 531 mg/L
Additional information
The effect of ethyldiisopropylamine on bacteria was determined according to the OECD guideline 209 “Activated Sludge, Respiration Inhibition Test” and GLP requirements (L'Haridon, 2002).The effect was assessed by measuring the micro-organisms respiration rates on a sample of activated sludge during an incubation period of 3 hours.The validity critera were fulfilled.The result based on the inhibition of the respiration rate was:EC50 (3h) of 912 mg/L. The test item toxicity, up to 1000 mg/L, comes from a pH effect (increase in pH).
As a supporting study, the rate of inhibition after 30min of exposure was evaluated in another test according to OECD 209 and GLP requirements (BASF, 1996). Two nominal concentrations were tested: 531 and 984 mg/L. NOEC (30min) of 531 mg/L was determined.
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