Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 241-034-8 | CAS number: 16961-83-4
Toxicity to soil macroorganisms except arthropods
Administrative data
Link to relevant study record(s)
- Endpoint:
- toxicity to soil macroorganisms except arthropods: long-term
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Justification for type of information:
- see read across justification
- Reason / purpose for cross-reference:
- read-across source
- GLP compliance:
- no
- Duration:
- 22 wk
- Dose descriptor:
- NOEC
- Effect conc.:
- 1 200 mg/kg soil dw
- Nominal / measured:
- nominal
- Conc. based on:
- test mat.
- Remarks:
- F-
- Basis for effect:
- growth
- Remarks on result:
- other: fluoride
- Details on results:
- The NOEC for sodium fluoride is 1200 mg F-/kg dw. Applying the conversion factor from F- to hexafluorosilicic acid, the NOEC corresponds to 1512 mg hexafluorosilicic acid/kg dw.
- Conclusions:
- The NOEC for sodium fluoride is 1200 mg F-/kg dw. Applying the conversion factor from F- to hexafluorosilicic acid, the NOEC corresponds to 1512 mg hexafluorosilicic acid/kg dw.
- Executive summary:
The toxicity of various fluoride compounds to Eisenia fetida was investigated over a period of 22 weeks. At higher concentrations sodium fluoride, potassium fluoride and the sodium salt of fluoroacetic acid reduced significantly. Calcium fluoride had no effect. The rate of maturity of the earthworms was also significantly reduced when sodium fluoride and potassium fluoride was used. The number of hatchlings was reduced in the presence of sodium fluoride, while the number of cocoons was reduced in the presence of a low concentration of sodium fluoride and potasium fluoride. No data is available on the effects of hydrogen fluoride on the growth, maturity and and fertility of the earthworm. However, in a terrestial environment the submission substance exists predominantly as fluoride ions. Therefore the results above are a good indication of the behaviour of hydrogen fluoride in the terrestial environment.
The NOEC for sodium fluoride is 1200 mg F-/kg dw. Applying the conversion factor from F- to hexafluorosilicic acid, the NOEC corresponds to 1512 mg hexafluorosilicic acid/kg dw.
Reference
Description of key information
The NOEC for sodium fluoride is 1200 mg F-/kg dw. Applying the conversion factor from F- to hexafluorosilicic acid, the NOEC corresponds to 1512 mg hexafluorosilicic acid/kg dw.
Key value for chemical safety assessment
- Long-term EC10, LC10 or NOEC for soil macroorganisms:
- 1 512 mg/kg soil dw
Additional information
The toxicity of various fluoride compounds to Eisenia fetida was investiated over a period of 22 weeks. At higher concentrations sodium fluoride, potassium fluoride and the sodium salt of fluoroacetic acid reduced significantly. Calcium fluoride had no effect. The rate of maturity of the earthworms was also significantly reduced when sodium fluoride and potassium fluoride was used. The number of hatchlings was reduced in the presence of sodium fluoride, while the number of cocoons was reduced in the presence of a low concentration of sodium fluoride and potasium fluoride (Vogel & Ottow, 1992).
The NOEC for sodium fluoride is 1200 mg F-/kg dw. Applying the conversion factor from F- to hexafluorosilicic acid, the NOEC corresponds to 1512 mg hexafluorosilicic acid/kg dw.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
