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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Ecotoxicological information

Short-term toxicity to fish

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Administrative data

Link to relevant study record(s)

Description of key information

Short-term toxicity to fish

Key value for chemical safety assessment

Fresh water fish

Fresh water fish
Effect concentration:
0.6 mg/L

Additional information

Studies are presented for a variety of species as follows:


Rainbow trout: LC50 (96- h): 0.6 mg/L test mat. (nominal) (K2)


Fathead minnow:LC50 (96- h): 44.8 mg/L test mat. (nominal) (K2)


Salmo gairdneri (new name: Oncorhynchus mykiss):LC50 (96- h): 0.6 mg/L test mat. (nominal) & 0.75 mg/L test mat. (nominal) (K2)


Pimephales promelas:LC50 (96- h): > 100 mg/L test mat. (nominal) (K2)


Lepomis macrochirus:LC50 (96- h): 7000 ppm test mat. (nominal) (K4)


Menidia beryllina:LC50 (96- h): 8700 ppm test mat. (nominal) (K4)


The results demonstrate that toxicity is prevalent in certain species, but not others. However, this may be due to differences in the methodology and testing procedures utilised.

As it is known that the phosphates as a group demonstrate toxicity to aquatic organisms, the LC50 value for hazard assessment is taken as 0.6 mg/l.. The risk phrase "Very toxic to aquatic organisms" is applicable.