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Physical & Chemical properties

Partition coefficient

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Description of key information

log Pow range: -1.43 to 2.5  at pH 7.2 at 25 °C 
(HPLC method OECD TG 117)
log Pow of single constituents:
log Pow 2,2'-iminodiethanol (Diehtanolamine): -1.43
log Pow 2,2-bis(4-hydroxyphenyl)propane (Bisphenol A): 2.5 at pH 7.2 at 25 °C
log Pow Mannich Base 1: 1.6 at pH 7.2 at 25 °C
log Pow Mannich Base 2: 0.7 at pH 7.2 at 25 °C
log Pow Mannich Base 3: 0.5 at pH 7.2 at 25 °C

Key value for chemical safety assessment

Log Kow (Log Pow):
0.325
at the temperature of:
25 °C

Additional information

The log Pow of the constituents of the test item was determined experimentally (Neuland, M., 2015, study number 2014/0016/12) apart from log Pow of 2,2'-iminodiethanol (Diethanolamine). In Hansch, C., Leo, A., D. Hoekman. Exploring QSAR - Hydrophobic, Electronic, and Steric Constants. Washington, DC: American Chemical Society., 1995., p. 10.) log Pow -1.43 was reported for 2,2'-iminodiethanol. Based on the composition of the test item a weighted average value for the log Pow (0.325) can be derived.