Registration Dossier
Registration Dossier
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EC number: 240-898-3 | CAS number: 16872-11-0
Long-term toxicity to aquatic invertebrates
Administrative data
Link to relevant study record(s)
Description of key information
Data on the long-term toxicity to aquatic invertebrates is available from the HBF4 chemical analogue NaBF4. The 21-d NOEC for NaBF4 in daphnids was determined at 188 mg/L. When corrected for molecular weight, the 21-d NOEC for HBF4 is 150 mg/L.
Key value for chemical safety assessment
Fresh water invertebrates
Fresh water invertebrates
- Effect concentration:
- 150 mg/L
Additional information
Data on the long-term toxicity to aquatic invertebrates is available from the HBF4 chemical analogue NaBF4. In this study, Daphnia magna were exposed to NaBF4 concentrations of 0, 188, 375, 750, 1500 and 3000 mg/L for 21 days. The chronic effects on number of first-brood neonates, total number of neonates, and average brood size was examined. Each experiment was terminated either when all control females completed their third brood or at 21 d.
Total number of neonates (F5,46 > 18.32, p > 0.01), first-brood neonates (F5,46 > 3.33, p > 0.01), and average brood size (F5,46 > 18.32, p > 0.01) differed between controls and some of the higher concentrations of NaBF4 and NaBF4, with each trait generally declining with increasing concentration. The 21-d NOEC for reproduction is 188 mg/L NaBF4. When corrected for molecular weight, the 21-d NOEC for HBF4 is 150 mg/L.Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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