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EC number: 203-939-6 | CAS number: 112-14-1
Biodegradation in water and sediment: simulation tests
Administrative data
Link to relevant study record(s)
- Endpoint:
- biodegradation in water and sediment: simulation tests
- 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: Data is from computational model developed by USEPA
- Qualifier:
- according to guideline
- Guideline:
- other: Modeling database
- Principles of method if other than guideline:
- Fugacity Model by EPI Suite estimation database
- GLP compliance:
- not specified
- Radiolabelling:
- not specified
- Oxygen conditions:
- other: estimation
- Inoculum or test system:
- not specified
- Parameter followed for biodegradation estimation:
- test mat. analysis
- Compartment:
- other: water, material (mass) balance
- % Recovery:
- 27.6
- Compartment:
- other: sediment, material (mass) balance
- % Recovery:
- 0.217
- % Degr.:
- 50
- Parameter:
- other: Half-life in water
- Sampling time:
- 8.666 d
- Remarks on result:
- other: Other details not known
- % Degr.:
- 50
- Parameter:
- other: Half-life in sediment
- Sampling time:
- 77.916 d
- Remarks on result:
- other: Other details not known
- Compartment:
- water
- DT50:
- 8.666 d
- Type:
- other: estimated data
- Temp.:
- 25 °C
- Remarks on result:
- other: Other details not known
- Compartment:
- sediment
- DT50:
- 77.916 d
- Type:
- other: estimated data
- Temp.:
- 25 °C
- Remarks on result:
- other: Other details not known
- Transformation products:
- not specified
- Validity criteria fulfilled:
- not specified
- Conclusions:
- Estimated half life of Octyl acetate in water was 8.666 days (208 h) and in sediment estimated to be 77.916 days (1870 h).
- Executive summary:
Estimation Programs Interface (EPI) Suite (2017) prediction model was run to predict the half-life in water and sediment for the test compound Octyl acetate (CAS No. 112 -14 -1). If released in to the environment, 27.6% of the chemical will partition into water according to the Mackay fugacity model level III and the half-life period of Octyl acetate in water is estimated to be 8.666 days (208 hrs). The half-life (8.666 days estimated by EPI suite) indicates that the chemical is not persistent in water and the exposure risk to aquatic animals is moderate to low whereas the half-life period of Octyl acetate in sediment is estimated to be 77.916 days (1870 hrs). Based on this half-life value (77.916 days), it indicates that the chemical Octyl acetate is not persistent in sediment.
Reference
Description of key information
Estimation Programs Interface (EPI) Suite (2017) prediction model was run to predict the half-life in water and sediment for the test compound Octyl acetate (CAS No. 112 -14 -1). If released in to the environment, 27.6% of the chemical will partition into water according to the Mackay fugacity model level III and the half-life period of Octyl acetate in water is estimated to be 8.666 days (208 hrs). The half-life (8.666 days estimated by EPI suite) indicates that the chemical is not persistent in water and the exposure risk to aquatic animals is moderate to low whereas the half-life period of Octyl acetate in sediment is estimated to be 77.916 days (1870 hrs). Based on this half-life value (77.916 days), it indicates that the chemical Octyl acetate is not persistent in sediment.
Key value for chemical safety assessment
- Half-life in freshwater:
- 8.666 d
- at the temperature of:
- 25 °C
- Half-life in freshwater sediment:
- 77.916 d
- at the temperature of:
- 25 °C
Additional information
Estimation Programs Interface (EPI) Suite (2017) prediction model was run to predict the half-life in water and sediment for the test compound Octyl acetate (CAS No. 112 -14 -1). If released in to the environment, 27.6% of the chemical will partition into water according to the Mackay fugacity model level III and the half-life period of Octyl acetate in water is estimated to be 8.666 days (208 hrs). The half-life (8.666 days estimated by EPI suite) indicates that the chemical is not persistent in water and the exposure risk to aquatic animals is moderate to low whereas the half-life period of Octyl acetate in sediment is estimated to be 77.916 days (1870 hrs). Based on this half-life value (77.916 days), it indicates that the chemical Octyl acetate is not persistent in sediment.
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