Registration Dossier
Registration Dossier
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EC number: - | CAS number: -
Adsorption / desorption
Administrative data
Link to relevant study record(s)
- Endpoint:
- adsorption / desorption: screening
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- April-August 2019
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- EU Method C.19 (Estimation of the Adsorption Coefficient (KOC) on Soil and Sewage Sludge Using High Performance Liquid Chromatography (HPLC))
- Deviations:
- not specified
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 121 (Estimation of the Adsorption Coefficient (Koc) on Soil and on Sewage Sludge using High Performance Liquid Chromatography (HPLC))
- Deviations:
- not specified
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- HPLC estimation method
- Media:
- soil
- Type:
- log Koc
- Value:
- 1.24
- pH:
- 7
- Temp.:
- 21 °C
- Remarks on result:
- other: Peak 1
- Type:
- log Koc
- Value:
- 2.9
- pH:
- 7
- Temp.:
- 21 °C
- Remarks on result:
- other: Peak 2
- Type:
- log Koc
- Value:
- 3.5
- pH:
- 7
- Temp.:
- 21 °C
- Remarks on result:
- other: Peak 3
- Key result
- Type:
- log Koc
- Value:
- 3.85
- pH:
- 7
- Temp.:
- 21 °C
- Remarks on result:
- other: Peak 4
- Remarks:
- Main peak with 81% peak area
- Type:
- log Koc
- Value:
- 4.66
- pH:
- 7
- Temp.:
- 21 °C
- Remarks on result:
- other: Peak 6
- Conclusions:
- The log Koc of Soya/Linseed Oil Fatty Acid-BADGE reaction product was determined according to OECD TG 121. log Koc values ranged from 2.42 to >5.63. The main peak with a peak area of 81 was resulted in a log Koc of 3.85 at pH 7 and 21°C.
Reference
The the determination of the adsorption coefficient (Kocand log Kocvalues) of the Soya/Linseed Oil Fatty Acid-BADGE reaction product at pH 7 were:
|
Koc |
log Koc |
Peak area |
Test item – peak 1 |
2.6 x 102 |
2.42 |
0.15 |
Test item – peak 2 |
8.0 x 102 |
2.90 |
0.89 |
Test item – peak 3 |
3.1 x 103 |
3.50 |
0.58 |
Test item – peak 4 |
7.1 x 103 |
3.85 |
81 |
Test item – peak 5 |
4.6 x 104 |
4.66 |
0.83 |
Test item – peak 6 |
> 4.3 x 105 |
> 5.63 |
1.2 |
Test item – peak 7 |
> 4.3 x 105 |
> 5.63 |
5.5 |
Test item – peak 8 |
> 4.3 x 105 |
> 5.63 |
1.4 |
Test item – peak 9 |
> 4.3 x 105 |
> 5.63 |
8.1 |
Description of key information
log Koc = 3.85 (main peak; peak area 81%) (OECD TG 121)
Key value for chemical safety assessment
- Koc at 20 °C:
- 7 079
Additional information
The log Koc of Soya/Linseed Oil Fatty Acid-BADGE reaction product was determined according to OECD TG 121. log Koc values ranged from 2.42 to >5.63. The main peak with a peak area of 81% was resulted in a log Koc of 3.85 at pH 7 and 21°C.
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