Registration Dossier
Registration Dossier
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EC number: 264-705-7 | CAS number: 64147-40-6
Biodegradation in soil
Administrative data
- Endpoint:
- biodegradation in soil
- Type of information:
- calculation (if not (Q)SAR)
- Remarks:
- Migrated phrase: estimated by calculation
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: see 'Remark'
- Remarks:
- Data estimated according to the Mackay level III fugacity model of EPIWEB v.4.1; the test substance was found to fall in the applicability domain of this method and results were adequate for the purpose of classification and labelling and/or risk assessment.
Data source
Reference
- Reference Type:
- other: Software
- Title:
- Mackay level III fugacity model of EPIWEB v.4.1
- Author:
- U.S. Environmental Protection Agency
- Year:
- 2 012
- Bibliographic source:
- US EPA. Estimation Programs Interface Suite™ for Microsoft® Windows, v 4.10. United States Environmental Protection Agency, Washington, DC, USA.
Materials and methods
Test guideline
- Guideline:
- other: REACH guidance on QSARs: Chapter R.6. QSARs and grouping of chemicals
- Principles of method if other than guideline:
- The soil biodegradation half life value was calculated using the Mackay level III fugacity model of EPIWEB v.4.1.
Test material
- Reference substance name:
- C18:0 triglyceride
- IUPAC Name:
- C18:0 triglyceride
- Reference substance name:
- adduct formed by two C18:3 triglycerides
- IUPAC Name:
- adduct formed by two C18:3 triglycerides
Constituent 1
Constituent 2
Results and discussion
Any other information on results incl. tables
The estimated DT50 value for C18:0 triglyceride using Mackay level III fugacity model (EPIWEB v.4.1) was found to be 75 days.
The estimated DT50 value for the adduct formed by two C18:3 triglycerides using Mackay level III fugacity model (EPIWEB v.4.1) was found to be 120 days.
Applicant's summary and conclusion
- Conclusions:
- The estimated DT50 values for a C18:0 triglyceride and an adduct formed by two C18:3 triglycerides using Mackay level III fugacity model (EPIWEB v.4.1) were found to range from 75 to 120 days.
- Executive summary:
The soil biodegradation half life of castor oil, dehydrated was estimated according to the Mackay level III fugacity model of EPIWEB v.4.1 considering a range of components present in the substance, i.e. from a C18:0 triglyceride to an adduct formed by two C18:3 triglycerides. DT50 values from 75 to 120 days were determined.
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