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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Description of key information

The gas Trifluoroacetyl chloride is extremely unstable in water. In contact with water or aqueous media it will react immediately to produce Trifluoroacetic acid and HCl, which are both considered as corrosive acids. For this reason TFAC is also considered as corrosive for skin and eyes. 

Key value for chemical safety assessment

Skin irritation / corrosion

Endpoint conclusion
Endpoint conclusion:
adverse effect observed (corrosive)

Eye irritation

Endpoint conclusion
Endpoint conclusion:
adverse effect observed (irreversible damage)

Additional information

The gas Trifluoroacetyl chloride is extremely unstable in water. In contact with water or aqueous media it will react immediately to produce Trifluoroacetic acid and HCl, which are both considered as corrosive acids. Even a small volume of gas in contact with the eye or skin would be expected to produce concentrations of corrosive acids. 


Skin irritation


No studies of dermal irritation / corrosion have been performed with the substance and none are proposed, based on scientific considerations and for reasons of animal welfare. In accordance with column 2 of REACH Annex VII, the in-vitro skin irritation study (required in section 8.1) does not need to be conducted as the available information indicates that the criteria are met for classification as corrosive to the skin.


Eye irritation


No studies on eye irritation have been performed with the substance and none are proposed, based on scientific considerations and for reasons of animal welfare. In accordance with column 2 of REACH Annex VII, the in-vitro eye irritation study (required in section 8.2) does not need to be conducted as the available information indicates that the criteria are met for classification as corrosive to the skin.

Justification for classification or non-classification

No harmonized classification is available for Trifluoroacetyl chloride. In contact with water or aqueous media it will react immediately to produce Trifluoroacetic acid and HCl, which are both considered as corrosive acids. Therefore TFAC is classified according to CLP Regulation (EC) 1272/2008 as corrosive to skin Cat. 1B (H314) and corrosive to eyes Cat. 1 (H318).