Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.

Diss Factsheets

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

Based on NH4Cl OECD SIDS, bioaccumulation data are not available because NH3 and/or NH4+ are common ions in the living organisms. However considering nitrification processes, it is unlikely that ammonium raises a bioaccumulation concern for organisms. Consequently, bioaccumulation of NH4F is only related to the fluoride ions in which the substance dissociates easily.

Sloof et al. (1989) concluded that the limited data indicates that fluoride biomagnification in the aquatic environment is of little significance. Fluoride accumulates in aquatic organisms predominantly in the exoskeleton of crustacea and in the skeleton of fish. No accumulation was reported for edible tissues.