Registration Dossier
Registration Dossier
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EC number: 293-214-0 | CAS number: 91052-53-8
Adsorption / desorption
Administrative data
Link to relevant study record(s)
Description of key information
The KOC values for the representative compounds of the test item range between 30.46 to 1.000E+10 L/kg.
The following table describes the classification of soil mobility potential of chemicals based on HPLC retention
times (McCall et al., 1981).
| Koc | Mobility Class |
0–50 |
Very high |
50–150 |
High |
150–500 |
Medium |
500–2000 |
Low |
2000–5000 |
Slight |
> 5000 |
Immobile |
Leaching potential is indicated by a mobility classification of medium to very high.
In conclusion, the log of Koc is range between 1.4837 to 10, the representative constituents of the glycerides, C12 -18 mono-, di- and tri- have different soil mobility potential. Taking into account their typical concentration in the composition, we can estimate than one third of the test item may be mobile in soils (28.2% of test item are considered as mobile in soil, 65.2% of test item are considered as immobile in soil and 6.7% of test item are considered as unknown mobility in soil).
Key value for chemical safety assessment
Additional information
A Quantitative Structure-Property Relationship (QSPR) model, KOCWIN v2.00, was used to calculate the organic carbon/water partition coefficients of the consituents of the test item. This QSPR model has been assessed as a Quantitative Structure-Analysis Relationship (QSAR) model to be compliant with the OECD recommendations for QSAR modeling (OECD, 2004).
OECD (2004) Principles for the validation, for regulatory purposes, of (Quantitative) Structure Activity-Relationship Models,
http://www.oecd.org/env/ehs/risk-assessment/oecdquantitativestructure-activityrelationshipsprojectqsars.htm
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