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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Endpoint summary

Administrative data

Description of key information

Ethyl (S)-lactate acid is a clear colourless liquid and has neither explosive nor oxidizing properties, but is classified as Flam Liq. 3 (H226) based on a flash point of 53.4 °C.

Further properties and characteristics are summarized in the following table:

Melting point

-9 °C

Boiling point

154 °C


1.034 g/cm³

Vapour pressure

510 Pa at 20 °C

Partition coefficient Log Kow

0.31 at 20 °C

Water solubility

fully miscible

Surface tension

70.5 mN/m

Self-ignition temperature

430 °C

Dissociation constant pKa

11.6 at 25 °C


3.6 mm²/s


Additional information