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Adsorption / desorption

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Reference
Endpoint:
adsorption / desorption
Remarks:
adsorption
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:
Estimated data generated using the EPI Suite model developed by the USEPA.
Qualifier:
according to guideline
Guideline:
other: Modeling database
Principles of method if other than guideline:
Prediction done using KOCWIN Program (v2.00)
GLP compliance:
not specified
Type of method:
other: MCI Method
Media:
soil
Specific details on test material used for the study:
- Name of test material: Black Pepper Oil
- IUPAC name: Pepper, black, oil (Piper nigrum L.)
- Molecular formula: Unspecified
- Molecular weight: Unspecified
- Smiles : Unspecified
- Inchl: Unspecified
- Substance type: Organic
- Physical state: Liquid (colorless to slightly greenish)
Radiolabelling:
not specified
Test temperature:
25 deg.C
Analytical monitoring:
not specified
Key result
Type:
Koc
Value:
1 120 L/kg
Temp.:
25 °C
Remarks on result:
other: Log Koc= 3.0491 (estimated by MCI method)
Conclusions:
The Soil Adsorption Coefficient i.e. Koc value of test chemical Black pepper oil (CAS: 8006-82-4) was estimated using EPI suite KOCWIN Program (v2.00) as 1120 L/kg (log Koc= 3.0491) by means of MCI method at 25 deg. C. This log Koc value indicates that test chemical Black pepper oil (CAS: 8006-82-4) has moderate sorption to soil and therefore test chemical has slow migration potential to ground water.
Executive summary:

The Soil Adsorption Coefficient i.e. Koc value of test chemical Black pepper oil (CAS: 8006-82-4) was estimated using EPI suite KOCWIN Program (v2.00) as 1120 L/kg (log Koc= 3.0491) by means of MCI method at 25 deg. C.  This log Koc value indicates that test chemical Black pepper oil (CAS: 8006-82-4) has moderate sorption to soil and therefore test chemical has slow migration potential to ground water.

Description of key information

The Soil Adsorption Coefficient i.e. Koc value of test chemical Black pepper oil (CAS: 8006-82-4) was estimated using EPI suite KOCWIN Program (v2.00) as 1120 L/kg (log Koc= 3.0491) by means of MCI method at 25 deg. C.  This log Koc value indicates that test chemical Black pepper oil (CAS: 8006-82-4) has moderate sorption to soil and therefore test chemical has slow migration potential to ground water.

Key value for chemical safety assessment

Koc at 20 °C:
1 120

Additional information

Following studies include the predicted data for the target chemical to conclude the soil adsorption coefficient of (Black pepper oil (CAS: 8006-82-4) in environment is summarized as follows:

The Soil Adsorption Coefficient i.e. Koc value of test chemical Black pepper oil (CAS: 8006-82-4) was estimated using EPI suite KOCWIN Program (v2.00) as 1120 L/kg (log Koc= 3.0491) by means of MCI method at 25 deg. C.  This log Koc value indicates that test chemical Black pepper oil (CAS: 8006-82-4) has moderate sorption to soil and therefore test chemical has slow migration potential to ground water.

The Soil Adsorption Coefficient i.e Koc value of Black pepper oil (cas: 8006-82-4) was estimated using Adsorption Coefficient module (v12.1.0.50374) program as Koc 6267 (log Koc=3.8 ± 1.0). This Koc value indicates that the test substance has a strong sorption to soil and therefore have negligible to slow migration potential to groundwater.

[LogKoc: 3.0491]

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