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EC number: 231-323-7 | CAS number: 7492-66-2
Biodegradation in soil
Administrative data
Link to relevant study record(s)
- Endpoint:
- biodegradation in soil
- Type of information:
- calculation (if not (Q)SAR)
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- accepted calculation method
- Justification for type of information:
- 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
- Test type:
- other: Estimated
- Specific details on test material used for the study:
- - Name of test material: 1,1-diethoxy-3,7-dimethylocta-2,6-diene
- Molecular formula : C14H26O2
- Molecular weight : 226.357
- Smiles notation : C(\C=C(\CC\C=C(/C)C)C)(OCC)OCC
- InChl : 1S/C14H26O2/c1-6-15-14(16-7-2)11-13(5)10-8-9-12(3)4/h9,11,14H,6-8,10H2,1-5H3/b13-11+
- Substance type:Organic
- Physical state: Liquid - Radiolabelling:
- not specified
- Oxygen conditions:
- other: estimation
- Parameter followed for biodegradation estimation:
- test mat. analysis
- Soil No.:
- #1
- % Recovery:
- 83.5
- Remarks on result:
- other: Other details not known
- Key result
- Soil No.:
- #1
- % Degr.:
- 50
- Parameter:
- other: Half life
- Sampling time:
- 75 d
- Remarks on result:
- other: Other details not known
- Key result
- Soil No.:
- #1
- DT50:
- 75 d
- Type:
- other: estimated data
- Temp.:
- 25 °C
- Remarks on result:
- other: Other details not known
- Transformation products:
- not specified
- Evaporation of parent compound:
- not specified
- Volatile metabolites:
- not specified
- Residues:
- not specified
- Conclusions:
- Biodegradation half-life of test substance 1,1-diethoxy-3,7-dimethylocta-2,6-diene in soil was estimated to be 75 days (1800 hrs).
- Executive summary:
The half-life period of 1,1 -diethoxy-3,7 -dimethylocta-2,6 -diene (CAS No. 7492 -66 -2) in soil was estimated using Level III Fugacity Model by EPI Suite version 4.1 estimation database (EPI suite, 2017). If released into the environment, 83.5% of the chemical will partition into soil according to the Mackay fugacity model level III. The half-life period of 1,1 -diethoxy-3,7 -dimethylocta-2,6 -diene in soil is estimated to be 75 days (1800 hrs). Based on this half-life value of
1,1 -diethoxy-3,7 -dimethylocta-2,6 -diene, it is concluded that the chemical is not persistent in the soil environment and the exposure risk to soil dwelling animals is moderate to low.
Reference
|
Mass Amount (percent) |
Half-Life (hr) |
Emissions (kg/hr) |
Soil |
83.5 |
1.8e+003 |
1000 |
|
Fugacity (atm) |
Reaction (kg/hr) |
Advection (kg/hr) |
Reaction (percent) |
Advection (percent) |
Soil |
2.63e-008 |
537 |
0 |
17.9 |
0 |
Description of key information
The half-life period of 1,1 -diethoxy-3,7 -dimethylocta-2,6 -diene (CAS No. 7492 -66 -2) in soil was estimated using Level III Fugacity Model by EPI Suite version 4.1 estimation database (EPI suite, 2017). If released into the environment, 83.5% of the chemical will partition into soil according to the Mackay fugacity model level III. The half-life period of 1,1 -diethoxy-3,7 -dimethylocta-2,6 -diene in soil is estimated to be 75 days (1800 hrs). Based on this half-life value of
1,1 -diethoxy-3,7 -dimethylocta-2,6 -diene, it is concluded that the chemical is not persistent in the soil environment and the exposure risk to soil dwelling animals is moderate to low.
Key value for chemical safety assessment
- Half-life in soil:
- 75 d
- at the temperature of:
- 25 °C
Additional information
The half-life period of 1,1 -diethoxy-3,7 -dimethylocta-2,6 -diene (CAS No. 7492 -66 -2) in soil was estimated using Level III Fugacity Model by EPI Suite version 4.1 estimation database (EPI suite, 2017). If released into the environment, 83.5% of the chemical will partition into soil according to the Mackay fugacity model level III. The half-life period of 1,1 -diethoxy-3,7 -dimethylocta-2,6 -diene in soil is estimated to be 75 days (1800 hrs). Based on this half-life value of
1,1 -diethoxy-3,7 -dimethylocta-2,6 -diene, it is concluded that the chemical is not persistent in the soil environment and the exposure risk to soil dwelling animals is moderate to low.
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