Registration Dossier
Registration Dossier
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EC number: 477-080-2 | CAS number: 103121-85-3
Adsorption / desorption
Administrative data
Link to relevant study record(s)
- Endpoint:
- adsorption / desorption: screening
- Type of information:
- (Q)SAR
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- accepted calculation method
- Principles of method if other than guideline:
- Calculation of the adsorption coefficient Koc according to a QSAR reported in Table 4 'QSARs for soil and sediment sorption for different chemical classes (Sabljic and Güsten, 1995)' in Part III of the Technical Guidance Document on Risk Assessment of the ECB, 2003.
- GLP compliance:
- no
- Type of method:
- other: calculation
- Key result
- Sample No.:
- #1
- Type:
- log Koc
- Value:
- -2.61 dimensionless
- Conclusions:
- log Koc = -0.722
- Executive summary:
The adsorption coefficient Koc was calculated according to a QSAR reported in Table 4 'QSARs for soil and sediment sorption for different chemical classes (Sabljic and Güsten, 1995)' in Part III of the Technical Guidance Document on Risk Assessment of the ECB, 2003.
Chemical class selected:
Chemical class: Nonhydrophobics
Equation: logKoc = 0.52 logKow + 1.02
Statistics: n=390, r2=0.63, s.e.=0.56
Result: log Koc = -0.722
Koc = 0.190
- Endpoint:
- adsorption / desorption: screening
- Data waiving:
- study scientifically not necessary / other information available
- Justification for data waiving:
- other:
Referenceopen allclose all
Description of key information
The log Pow of the test item of -3.35 is low. Accordingly also the adsorption potential will be low.
The Koc is 0.190 L/kg, calculated form an equation for nonhydrophobics given in Part III of the Technical Guidance Document on Risk Assessment of the ECB, 2003.
Key value for chemical safety assessment
- Koc at 20 °C:
- 0.19
Additional information
[LogKoc: -0.722]
[LogKoc: -0.721]
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