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Environmental fate & pathways

Adsorption / desorption

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Administrative data

Endpoint:
adsorption / desorption
Remarks:
adsorption
Type of information:
(Q)SAR
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Validated QSAR model
Justification for type of information:
QSAR prediction: migrated from IUCLID 5.6

Data source

Referenceopen allclose all

Reference Type:
publication
Title:
Predicting the sorption of fatty alcohols and alcohol ethoxylates to effluent and receiving water solids
Author:
van Compernolle, R. et al.
Year:
2006
Bibliographic source:
Ecotoxicology and Environmental Safety 64: 61 – 74
Reference Type:
secondary source
Title:
Human & Environmental Health Risk Assessment on ingredients of European household cleaning products. Alcohol Ethoxylates. Version 2.0. September 2009
Author:
HERA
Year:
2009
Bibliographic source:
http://www.heraproject.com

Materials and methods

Principles of method if other than guideline:
Calculation based on equations developed by van Compernolle et al. (2006).
GLP compliance:
no
Type of method:
other: calculation
Media:
other: e.g. activated sludge, river water solids

Test material

Constituent 1
Reference substance name:
Alcohols, C12-18, ethoxylated
EC Number:
500-201-8
EC Name:
Alcohols, C12-18, ethoxylated
Cas Number:
68213-23-0
Molecular formula:
not applicable, UVCB
IUPAC Name:
Alcohols, C12-18, ethoxylated
Details on test material:
- Analytical purity: not applicable

Results and discussion

Adsorption coefficientopen allclose all
Type:
log Koc
Value:
4.29
Temp.:
25 °C
Remarks on result:
other: The range of the calculated values represents the variation of carbon chain length and the degree of ethoxylation according to substance specifications.
Type:
Koc
Value:
19 499
Temp.:
25 °C
Remarks on result:
other: The range of the calculated values represents the variation of carbon chain length and the degree of ethoxylation according to substance specifications.

Any other information on results incl. tables

Table 1: Range of calculated Koc and log Koc values according to substance specifications (carbon chain length, degree of ethoxylation)

Structure

Koc

Log Koc

Alcohol, C 12

4656

 3.7

Alcohol, C 18

398107

 5.6

Alcohol ethoxylate, C12, 1 EO

 

5188

 

3.7

Alcohol ethoxylate, C18, 1 EO

 

443609

 

5.6

Alcohol ethoxylate, C12, 3 EO

 

5188

 

3.7

Alcohol ethoxylate, C18, 3 EO

 

550808

 

5.7

Applicant's summary and conclusion

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