Registration Dossier

Diss Factsheets

Administrative data

Endpoint:
hydrolysis
Type of information:
experimental study
Adequacy of study:
key study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2002
Report date:
2002

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
EU Method C.7 (Degradation: Abiotic Degradation: Hydrolysis as a Function of pH)
Deviations:
no
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 111 (Hydrolysis as a Function of pH)

Test material

Constituent 1
Test material form:
solid: particulate/powder
Radiolabelling:
no

Results and discussion

Dissipation DT50 of parent compoundopen allclose all
pH:
4
Temp.:
50 °C
DT50:
> 120 h
Remarks on result:
other:
pH:
7
Temp.:
50 °C
DT50:
> 2.5 - < 121 h
Remarks on result:
other:
pH:
7
Temp.:
50 °C
Hydrolysis rate constant:
0.15 h-1
DT50:
4.6 h
Type:
(pseudo-)first order (= half-life)
Remarks on result:
other:
pH:
7
Temp.:
38 °C
Hydrolysis rate constant:
0.031 h-1
DT50:
22.6 h
Remarks on result:
other:
pH:
7
Temp.:
25 °C
Hydrolysis rate constant:
0.005 h-1
DT50:
146 h
Remarks on result:
other:
pH:
9
Temp.:
50 °C
DT50:
< 2.4 h
Remarks on result:
other:

Applicant's summary and conclusion

Validity criteria fulfilled:
yes