Registration Dossier

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Trimellitic anhydride mono-chloride (TMAC) has estimated Koc values between 10 and 20.03.

Based on these values, the substance is expected to have a low tendency to adsorb to soils and sediments.

Additional information

Adsorption / desorption

(Q)SAR-modelled adsorption coefficient (Koc) values for trimellitic anhydride mono-chloride (TMAC) obtained with the KOCWIN v2.00 model of the US EPA range from ca. 10 to 20.03 L/kg.

But these values are not fully reliable (out of the applicability domain for one criteria).

Based on these values, TMAC is expected to be mobile and have a low tendency to adsorb to soils and sediments.

This result is given only for information, and must be taken with caution.

This QSAR prediction is not judged to be fully adequate to meet the data requirements for Regulation (EC) 1907/2006, Annex VIII, 9.3.1.,Adsorption/desorption screening.

It should be noted that the water exposure is not expected. In addition, the substance is readily biodegradable and hydrolyses rapidly. Therefore the estimation of the Koc value can be waived in the REACH context.