Registration Dossier
Registration Dossier
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EC number: 204-469-4 | CAS number: 121-44-8
Endpoint summary
Administrative data
Description of key information
Additional information
Hydrolysis:
Considering the hydrolytic stability of the test substance, it is not to be expected that hydrolytic processes will contribute to its degradation in the environment. This is based on the lack of functional groups that hydrolyze under environmental conditions.
Biodegradation:
Abiotic degradation:
In the atmosphere triethylamine is expected to undergo indirect photodegradation. Under environmental conditions no hydrolysis is expected for the substance.
Biodegradation:
According to the decision of the EU Commission Working Group on the Classification and Labelling of dangerous substances (1995) the substance should be regarded as readily biodegradable.
Bioaccumulation:
A bioconcentration factor lower than 0.5 was found in Cyprinus carpio by Chemical Industry Ecology – Toxicology & Information Center (CSCL Japan) in 1992 - ten years before a BCF of 7.45 was calculated by Lyman et al. (1982). Due to these results no bioaccumulation of triethylamine is to be expected.
Adsorption / desorption:
A calculation (EPIWIN, SCR PCKOCWINv1.66) was performed by BASF SE (2008) to estimate the adsorption in soil for triethylamine. As result an adsorption coefficient Koc of 107.2 and a logKoc of 2.03 was reported. This data refers to the uncharged molecule with a pKa value at 25 °C of 10.75.
Another calculation was published by Lyman et al. (1982). The octanol/water partition coefficient and water solubility was used for a regression equation whereby an estimated Koc of 11 – 146 was obtained.
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