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Environmental fate & pathways

Hydrolysis

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Administrative data

Endpoint:
hydrolysis
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
other: Body responsible for the test
Title:
Unnamed
Year:
2007

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other: 92/69/EEC, C.7 OECD NR.: 111 Hydrolysis as a Function of pH (4,7,9): Modified method
GLP compliance:
yes

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
Batch No.:042/2006

Study design

Analytical monitoring:
yes
Buffers:
- pH: 4
- Type and final molarity of buffer: citrato-phosphate
- Composition of buffer: 30,7ml of 0,1M citric acid + 19,3 ml of 0,2M Na2HPO4 /100ml

Results and discussion

Dissipation DT50 of parent compoundopen allclose all
pH:
4
Temp.:
25 °C
Hydrolysis rate constant:
s-1
DT50:
14.5 h
pH:
4
Temp.:
25 °C
Hydrolysis rate constant:
s-1
DT50:
21.3 h
pH:
4
Temp.:
15 °C
Hydrolysis rate constant:
s-1
DT50:
43.4 h
pH:
4
Temp.:
15 °C
Hydrolysis rate constant:
s-1
DT50:
53.8 h
pH:
7
Temp.:
25 °C
Hydrolysis rate constant:
s-1
DT50:
3.3 h
pH:
7
Temp.:
25 °C
Hydrolysis rate constant:
s-1
DT50:
9 h
pH:
7
Temp.:
15 °C
Hydrolysis rate constant:
s-1
DT50:
4.9 h
pH:
7
Temp.:
15 °C
Hydrolysis rate constant:
s-1
DT50:
10.4 h
pH:
9
Temp.:
25 °C
Hydrolysis rate constant:
s-1
DT50:
6.4 h
pH:
9
Temp.:
25 °C
Hydrolysis rate constant:
s-1
DT50:
16.7 h

Applicant's summary and conclusion