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Environmental fate & pathways

Hydrolysis

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Description of key information

The preliminary test has shown that the test substance in buffered solution of pH 4 was hydrolysed by more than 10 % in period of 5 days. Therefore the test substance was considered to be hydrolytically unstable.

Key value for chemical safety assessment

Half-life for hydrolysis:
1.22 d
at the temperature of:
22 °C

Additional information

The preliminary test has shown that the test substance in buffered solution of pH 4 was hydrolysed by more than 10 % in period of 5 days. Therefore the test substance was considered to be hydrolytically unstable.

The results of Tier 2 have shown the linear dependence of logarithm of concentration on time. The hydrolysis in buffered solution of pH 4 was considered to be described as a pseudo-first order reaction.

In Tier 3, a major hydrolysis product of the test substance was identified by mass spectrometry. Positive-ion mass spectra were recorded in mass range 50-1000 Daltons in all experiments (RT = 2.14 min).