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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

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Environmental fate & pathways

Hydrolysis

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Description of key information

Benzenediamine, ar-methyl-, polymer with methyloxirane and oxirane is hydrolytically stable.


 

Key value for chemical safety assessment

Additional information

The hydrolysis behaviour of Benzenediamine, ar-methyl-, polymer with 2-methyloxirane and oxirane was investigated at pH = 4, 7 and 9 using a HPLC/MS methods for analysis. The registration item, as an NLP, contains different molecular weight fractions (= NLP-fraction) which behave similar in hydrolysis reaction. Benzenediamine, ar-methyl-, polymer with 2-methyloxirane and oxirane is found to be stable at 50°C with less than 10 % dissipation in 5 days at all three pH-values. Therefore, it can be assumed that the test item is also stable at 25°C and no half-life times and hydrolysis rates were calculated (Currenta, 2009).