Registration Dossier

Ecotoxicological information

Endpoint summary

Administrative data

Description of key information

Additional information

SPECIAITION OF THE REGISTRATIONS SUBSTANCE

The registration substance is a multi-constituent and due to the strongly basic nitrogen atoms present in the different constituents (pKa112.7-14.7 and pKa210.1-13.8, see IUCLID Chapter 4.21) a cationic surfactant. Due to the estimated pKa it is obvious that in the environmental pH range of 4 to 9 the constituents are mono- or di-protonated.

SUMMARY OF THE AQUATIC ECOTOXICITY

 Test type Guideline Species  Endpoint Value  Remark 
 Acute Fish  OECD 203 Danio rerio   LC50 (96h) 710 µg/L
 Acute Daphnia OECD 202  Daphnia magna  EC50 (48h)   58 µg/L  
 Algae OECD 201  Desmodesmus sups. ErC50 (72h)  20 µg/L
 Sludge respir, inhib. OECD 209   Non-adapted sludge NOEC (3h)  10 mg/L  EC50 (3h) 28 mg/L
            
 Chronic Fish  OECD 211 Danio rerio  NOEC repro (9d)  130 µg/L
 Chronic Daphnia  OECD 202  Daphnia magna  NOEC repro (21d)  25 µg/L  
 Algae  OECD 201  Desmodesmus sups.  ErC10 (72h)  4 µg/L  most sensitive

Algae is the most sensitive species. The PNEC freshwater and marine is derived from the ErC10 (72h) algae of 4 µg/L.