Registration Dossier

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

The biodegradation of Tri-C18-22 (even numbered)-alkyl 2-hydroxypropane-1,2,3-tricarboxylate was not specifically determined.

However, data are available for a structurally related substance Tri (hexyl, octyl, decyl) citrate with the only difference in shorter carbon chain ester groups. The substance exhibited up to 67% biodegradation after 28 d in a ready biodegradability test. The biodegradation of the test substance reached 51% at the end of the 10-d window. But for UVCB substances the 10-day window condition should not be applied. In a study on inherent biodegradability the pass level of 70% was reached. The substance can be considered as readily biodegradable.

In accordance with column 2 of REACH annex IX, further degradation testing does not need to be conducted because direct or indirect exposition in soil is not probable.