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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

The estimated neodecanoic acid Koc is 342 based on the log(Kow) value of 4.3 for the neutral (un-ionized) species (measured at pH 2.5).

Henry’s Law constant for neodecanoic acid is calculated as 0.535 Pa-m3/mole at 25 degrees C.

Additional information

The estimated adsorption coefficient is expected to be sensitve to pH. Neodecanoic acid is ionizable and has a pKa of 5.17 and is expected to dissociate to the ionised form at neutral pH, which is typical of most natural surface waters and therefore, remain largely in water.

The  vapor pressure for neo-decanoic acid is 2.0 Pa, which suggests limited volatilization from the terrestrial compartment. The estimated Henry’s Law constant for neo-decanoic acid is also low, which indicates that volatilization from water is not expected to occur at a significant rate. Volatilization is not expected to be a significanttransport process for neodecanoic acid.