Registration Dossier

Environmental fate & pathways

Biodegradation in water: screening tests

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

The test substance is not readily biodegradable, but only poorly biodegradable

Key value for chemical safety assessment

Additional information

As indicated by a number of standardized ready biodegradability studies, Tridecylamine, branched and linear (CAS 86089 -17 -0) is not readily biodegradable according to OECD criteria. In a performed CO2 Evolution Test (OECD TG 301B), the mean degradation of TDA, tested in two concentrations, was < 10 % after 56 days, indicating poor biodegradability (BASF AG, 2003, Rep. no.: 03/0391/36/1). Domestic activated sludge was used as inoculum.

Similar results were obtained with two Closed Bottle Tests (OECD TG 301D) performed with the substance: <10 % of (BASF AG, 2003, Rep. no.; 03/0391/36/1) and 6% within 28 days (BASF AG, 1993, Rep.no.: 92/1297/23/1). The results are based on DOC removal. The effluent from a laboratory wastewater plant treating municipal sewage was used as inoculum.