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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Ecotoxicological information

Endpoint summary

Administrative data

Description of key information

Additional information

Toxicity to soil macroorganisms except arthropods:

Key study: LC50 (14 days) for Eisenia fetida = 1139.9 mg/kg soil dw (test method according to EU C8 guideline). This result suggests a low toxicity of trichloroacetic acid to Eisenia fetida.


Toxicity to terrestrial arthropods:

Supporting study: Fourteen months after trichloroacetic acid treatment, the number of Agriotes obscurus (wireworms) and springtails decreased, but not significantly. Otherwise, the number of millipedes and mites increased. Twenty-six months after treatment, the number of Agriotes sputator (wireworms) decreased, but not significantly.


Toxicity to terrestrial plants:

Key study: Several results with three different species. The 14 -d EC50 value for Avena sativa in a loam sand soil culture was 4.6 mg/kg. The NOEC value was 1 mg/kg. (test method acccording to OECD guideline 208). In fact, trichloroacetic acid is a known monocotyledon toxicant. A potential risk to the terrestrial environment is identified due to high toxicity to plants.


The 14 -d EC50 value for Lactuca sativa in a loam sand soil was 37 mg/kg.


The 14 -d EC50 value for Lycopersicum esculentum in a loam sand soil was 154 mg/kg.


Toxicity to  soil microorganisms:

The NOEC for nitrogen transformation was determined to be 100.0 mg test item/kg soil dry.