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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Additional information

Adsorption / desorption

The Soil Adsorption Coefficient (Koc) of DIPLAST TM 4, calculated using the softwareKOCWINv2.00, leads to the following estimated results:

Log Koc= 4.8060 (Koc = 63973 L/kg) (from MCI)

Log Koc= 4.2067 (Koc = 16095 L/kg) (from Log Kow)

Overall, the MCI methodology is somewhat more accurate than the Log Kow methodology, although both methods yield good results, then the Koc estimate value from MCI was selected for the environmental assessment.

According to the McCall classification scheme, this means that the above substance is immobile (Koc > 5000) on soil.

Henry's Law constant

The Henry's Law Constant (HLC) of tributyl benzene-1,2,4-tricarboxylate, calculated using the software HENRYWIN v3.20, leads to the following estimated results:


HLC= 1.87E-03 Pa-m3/mole(bond contribution)

HLC= 4.11E-04 Pa-m3/mole(group contribution)

HLC= 3.84E-02 Pa-m3/mole(VP/WS ratio)


It appears reasonable that the key HLC value, needed for the chemical safety assessment, can be the average of them:


HLC_key=1.36E-02 Pa-m3/mole(1.34E-07 atm-m3/mole)


The above value indicates that the substance isessentially non volatilefrom surface water.

Distribution modelling

Distribution in environmental compartments has been calculated using a Fugacity model according to Mackay, Level III. The soil (69 %) was then found to be the major target compartment.