Registration Dossier
Registration Dossier
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EC number: 247-728-7 | CAS number: 26479-35-6
Short-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
In a 48-hour study, potassium allophonate produced immobility effects on the invertebrate Daphnia magna at 88.4 mg a.i./L, resulting in a No Observed Effect Concentration (NOEC) at 40.7 mg a.i./L. The EC50 was greater than the highest concentration tested, 88.4 mg a.i./L.
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 88.4 mg/L
Additional information
A 48-hour study was conducted according to Organisation for Economic Co-operation and Development (OECD) Testing Guideline 202 using potassium allophonate on the aquatic invertebrate Daphnia magna (water flea) (ABC Laboratories, 2012c). The 24- and 48-h EC50s for potassium allophonate are both >88.4 mg a.i./L, the highest concentration tested. Immobility occurred in 15% of the organisms at a concentration of 88.4 mg a.i./L, leading to a NOEC of 40.7 mg a.i./L. Therefore potassium allophonate has sublethal effects on D. magna at concentrations greater than 40.7 mg a.i./L.
References:
ABC Laboratories, Inc. 2012c. Potassium Allophonate: Acute Toxicity to the Cladoceran, Daphnia magna, Determined Under Static-Renewal Test Condition. Testing laboratory: ABC Laboratories, 7200 E. ABC Lane, Columbia, Missouri, 65202. Owner Company: Kerr Fire Fighting Chemicals, Ashcroft Rd., Knowsley Industrial Park, Kirby, Liverpool L33 7TS, England. Company study no.: 68126. Report date: 2012-11-13.
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