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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

Adsorption / desorption

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Administrative data

Endpoint:
adsorption / desorption: screening
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Calculated using the log Kow approach of EPI Suite v 4.1.

Data source

Reference
Reference Type:
other: software
Title:
EPI Suite v 4.1 (PCKOCWIN)
Author:
U.S. Environmetal Protection Agency (US EPA)
Year:
2012
Bibliographic source:
Estimation Programs Interface Suite™ for Microsoft® Windows, v 4.1. United States Environmental Protection Agency, Washington, DC, USA.

Materials and methods

Principles of method if other than guideline:
KOCWIN of EPI Suite v 4.1 using the methodology based on log Kow.
GLP compliance:
no
Type of method:
other: Calculation
Media:
other: Not applicable

Test material

Constituent 1
Reference substance name:
Reaction mass of C18 (unsatd.) fatty acid amides/esters of diethanolamine, C16-18 (even-numbered) fatty amine ethoxylates, castor oil ethoxylates and sulfosuccinates of C18 (unsatd.) fatty acid diethanolamide, sodium salt
EC Number:
943-172-0
IUPAC Name:
Reaction mass of C18 (unsatd.) fatty acid amides/esters of diethanolamine, C16-18 (even-numbered) fatty amine ethoxylates, castor oil ethoxylates and sulfosuccinates of C18 (unsatd.) fatty acid diethanolamide, sodium salt

Study design

Batch equilibrium or other method

Computational methods:
PCKOCWIN (version 2) of EPI Suite v 4.1 using the methodology based on log Kow.

Results and discussion

Adsorption coefficient
Key result
Type:
log Koc
Value:
0.855 dimensionless
Remarks on result:
other: (KOCWIN estimation, using the log Kow)

Results: Batch equilibrium or other method

Adsorption and desorption constants:
The estimated log Koc using the log Kow approach of KOCWIN (EPI Suite v 4.1) was found to be 0.8545.
Transformation products:
not measured
Details on results (Batch equilibrium method):
Not applicable
Statistics:
Not applicable

Any other information on results incl. tables

Calculation details:

log Koc = 0.8679 log Kow - 0.0004 = 0.8679 * 0.985 - 0.0004 = 0.8545

(n = 68, r2 = 0.877, std dev = 0.478, avg dev = 0.3781)

Applicant's summary and conclusion

Validity criteria fulfilled:
not applicable
Conclusions:
The estimated log Koc using the log Kow approach of KOCWIN (EPI Suite v 4.1) was found to be 0.8545.
Executive summary:

Based on the log Kow approach of KOCWIN (EPI Suite v 4.1), the log Koc of the substance was found to be 0.8545.