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Partition coefficient

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Description of key information

- not applicable due to hydrolysis
- the values of hydrolysis products at 25°C are given as follows:
logPow= 7.3 at pH 7.5 (of Bis-(2-ethylhexyl)amine, measured)
logPow= 1.7 (of Methyl-1H-benzotriazole(tolyltriazole, calculated)
logPow= 0.35 (of Formaldehyde, calculated)

Key value for chemical safety assessment

Additional information

The partition coefficient of test substance could not be determined by experiment as the test substance is hydrolytically unstable related to

the study “Hydrolysis as a function of pH”, report no. 20120244.01 from Siemens AG. Thus the logPow value of hydrolysis products have been considered and individually generated.

The logPow of Methyl-1H-benzotriazole (tolyltriazole) and Formaldehyde were calculated based on fragment method using KOWWIN module of software EPI Suite.

The logPow of Bis-(2-ethylhexyl)amine with CAS number 106-20-7 had been measured refers to ref. OXEA GmbH, report no AN-ASB 0496, 12 April 2010.

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