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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Endpoint summary

Administrative data

Description of key information

Additional information

TrifluoroAcetic Acid Ethyl ester (TFAE) is a moderately dense and very fluid liquid, considered as highly volatile.

As it hydrolyses rapidly into the corresponding acid TFA, the degradation product is therefore is the actual and relevant species present in the environment. TFA is fully miscible in water, where it will exist under its ionised form (acetate). The substance has low potential for bioaccumulation, and exhibits no surface-active properties.

With regard to physical hazards, TFAE is classified as highly flammable, but no explosive or oxidising properties are anticipated.

Summary of relevant physico-chemical properties:

Endpoint

Data

Appearance

Colourless liquid, transparent, with characteristic pleasant odour.

Melting point

<-20°C

Boiling point

61 °C

Relative density

D204= 1.194

Vapour pressure

18.5 kPa at 20°C

Highly volatile.

Log Kow

0.79 (for hydrolysis product TFA)

Low bioaccumulation potential.

Water solubility

Fully miscible (after hydrolysis into TFA).

Surface tension

72,5 mN/m at 1 g/L and 20°C (for hydrolysis product TFA)

Not surface-active.

Flammability

Flash point = -4.5°C.

Flammable liquid.

Auto-Ignition Temperature = 385°C

Explosive properties

Not anticipated (based on chemical structure).
Oxidising properties

 Not anticipated (based on chemical structure).
 Dissociation constant  pKa = 0.43 (for hydrolysis product TFA)
 Viscosity  ca 1,1 mPa s at 20°C