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The substance is considered to be susceptible to hydrolysis at pH 4, 7, and 9, with a hydrolysis half-life of approximately 100 hours at 20°C at pH 4 and 7. The half-life was found to be 7.35 hours at 20°C at pH 9. From the chemical structure and literature reference product of hydrolysis is expected to 1,2,4 -benzenetricarboxylic acid which is known to be readily biodegradable (SIDS Initial Assessment Report for 15th SIAM (Boston, USA, October 2002).

The substance is not readily biodegradable, but appears to show evidence of aerobic degradation that did not plateau before the end of a 28-day study. A Modified OECD Screening test (OECD 301 F, EC C.4-D) demonstrated 59% degradation after 28 days, indicating a potential for complete mineralisation in the environment.

The substance is expected to have a low potential for aquatic / sediment bioaccumulation because it has a low octanol water partition coefficient (log Kow = 0.9).

The adsorption coefficient of the test substance on soil / Sewage sludge is estimated (OECD 121 and EU method C.19) as log Koc of 2.4 (25ºC).

In accordance with column 2 of REACh (Regulation (EC) No 1907/2006) Annex IX, the simulation testing on ultimate degradation in surface water, soil simulation testing, and sediment simulation testing (required in section 9.2.1.2, 9.2.1.3, and 9.2.1.4) do not need to be conducted based on the findings of the Chemical Safety Assessment; the substance does not fulfil classification criteria according to the applicable regulations and does not fulfil the criteria for vPvB or PBT. 

The substance is not expected to persist in the environment.

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