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Environmental fate & pathways

Hydrolysis

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Reference
Endpoint:
hydrolysis
Type of information:
read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Justification for type of information:
Please refer to Read Across Statement attached in Section 13
Reason / purpose for cross-reference:
read-across source
Transformation products:
not specified
% Recovery:
> 96.4 - < 101
pH:
4
Temp.:
50 °C
Duration:
120 h
% Recovery:
> 94 - < 98.6
pH:
7
Temp.:
50 °C
Duration:
120 h
% Recovery:
> 103 - <= 104
pH:
9
Temp.:
50 °C
Duration:
120 h
Key result
pH:
4
Temp.:
25 °C
DT50:
> 1 yr
Type:
not specified
Remarks on result:
other: Estimated from results at 50°C
Key result
pH:
7
Temp.:
25 °C
DT50:
> 1 yr
Type:
not specified
Remarks on result:
other: Estimated from results at 50°C
Key result
pH:
9
Temp.:
25 °C
DT50:
> 1 yr
Type:
not specified
Remarks on result:
other: Estimated from results at 50°C
Validity criteria fulfilled:
yes
Remarks:
For all: Linearity of detector response/concentration in the range of 0.10-1.0 mg/L. For pH: second-order behavier. At pH 7 & 9: First-order behavior with correlation coefficents (r2) ≥ 0.998
Conclusions:
The test item was found not to hydrolyse neither at pH 4; 7 nor 9. The half-life is expected to be greater than 1 year at 25 ºC.
Remark: the test solution contains NaOH due to the production method.
Executive summary:

The test was performed according to the OECD guideline 111 under GLP compliance. The test item was found not to hydrolyse neither at pH 4; 7 nor 9. The half-life is expected to be greater than 1 year at 25  ºC.

Description of key information

The source substance was found not to hydrolyse at neither pH 4; 7 nor 9. The half-life is expected to be greater than 1 year at 25 ºC.

Key value for chemical safety assessment

Half-life for hydrolysis:
1 yr
at the temperature of:
25 °C

Additional information