Registration Dossier
Registration Dossier
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EC number: 939-248-8 | CAS number: -
Hydrolysis
Administrative data
- Endpoint:
- hydrolysis
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- June 2012 to February 2013
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 013
- Report date:
- 2013
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 111 (Hydrolysis as a Function of pH)
- Deviations:
- yes
- Remarks:
- Carbon analysis was performed in an external laboratory
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Certificate nr 2012/56 on july 18th 2012
Test material
- Reference substance name:
- PROCESS OIL
- IUPAC Name:
- PROCESS OIL
- Test material form:
- gas under pressure: refrigerated liquefied gas
Constituent 1
- Radiolabelling:
- no
Study design
- Analytical monitoring:
- yes
Duration of testopen allclose all
- Duration:
- 5 d
- pH:
- 1.2
- Temp.:
- 50
- Initial conc. measured:
- 325 mg/L
- Duration:
- 5 d
- pH:
- 4.5
- Temp.:
- 50
- Initial conc. measured:
- 153 mg/L
- Duration:
- 5 d
- pH:
- 7
- Temp.:
- 50
- Initial conc. measured:
- 149 mg/L
- Duration:
- 5 d
- pH:
- 9
- Temp.:
- 50
- Initial conc. measured:
- 148 mg/L
Results and discussion
- Transformation products:
- yes
Identity of transformation products
- No.:
- #1
Reference
- Reference substance name:
- Unnamed
- IUPAC name:
- Dissolved organic carbon
- Identifier:
- common name
- Identity:
- Dissolved organic carbon
Total recovery of test substance (in %)open allclose all
- % Recovery:
- 8.2
- St. dev.:
- 96
- pH:
- 1.2
- Temp.:
- 50 °C
- Duration:
- 5 d
- % Recovery:
- 7
- St. dev.:
- 82
- pH:
- 4.5
- Temp.:
- 50 °C
- Duration:
- 5 d
- % Recovery:
- 8.6
- St. dev.:
- 101
- pH:
- 7
- Temp.:
- 50 °C
- Duration:
- 5 d
- % Recovery:
- 6.4
- St. dev.:
- 75
- pH:
- 9
- Temp.:
- 50 °C
- Duration:
- 5 d
Any other information on results incl. tables
The hydrolysis as a function of pH of the test item OIL T279 was assessed according to the OECD guidelne 111.
The objective of the study was to determine the rate of hydrolysis of the test item in different buffers and at different temperatures.
The preliminary test showed that the item was stable at pH 1.2, 4.5, 7 and 9 at 50 °C. After 5 days, less than 10% of hydrolysis were observed through analysis of dissolvent organic carbon.
As specified in the OECD guideline 111, OIL T279 is thus considered as hydrolytically stable and no additionnal testing is required.
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Conclusions:
- As specified in the OECD guideline 111, OIL T279 is thus considered as hydrolytically stable and no additionnal testing is required.
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