Registration Dossier
Registration Dossier
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EC number: 452-110-7 | CAS number: -
Endpoint summary
Administrative data
Description of key information
Additional information
AAA reaction product is a complex mixture of different monomers, dimers, trimers and polymers. The stability and fate in the environment is driven by the physical/chemical properties of the single components.
Based on QSAR estimates, no hydrolyses of AAA reaction product in an slightly acidic to neutral aquatic environment (pH 4 to pH 7), was concluded. Under alkine conditions of pH 8 to pH 9, only ester type functional groups of trimellitic acid with diethanolamine are expected to be hydrolysed. Amides and esters of tetrahydrophtalic acid are estimated to be stable at these pHs. Hydrolysis of mixed ester/amide trimers will lead to stable amide linked dimers, diethanolamine and trimellitic acid as products. Ester linked dimers and trimers of trimellitic acid with diethanolamine are expected to
hydrolyse to the corresponding monomers with estimated half- lifes of about 0.5 to 3 days at pH 9 and about 5 to 30 days at pH 8.
In terms of biodegradation, in water, the mean readily biodegradation of AAA reaction product amounted to 53% after 28 days, corresponding to a T1/2 of approximately 28 days indicating partly biodegradation. Based on the theoritical partition coefficients, AAA has low potenial for adsorption to soil and low potenial for adsorption to sediment and bioaccumualtion in general.
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