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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Partition coefficient

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Administrative data

Link to relevant study record(s)

Description of key information

Miscible in water and polar solvents.  Partition coefficient less than 1 (Log Kow - 1.6)

Key value for chemical safety assessment

Log Kow (Log Pow):
at the temperature of:
24 °C

Additional information

Initial QSAR estimate and literature references of Log Kow -1.6 was confirmed to be Log Kow -1.3 by a subsequent Shake-Flask test performed at the request of ECHA. Malic acid is miscible in water at all pH levels and is naturally occurring as an intermediate in aerobic metabolic processes; the partition coefficient is academic and not relevant for environmental risk assessment.