Registration Dossier

Administrative data

Endpoint:
adsorption / desorption
Remarks:
adsorption
Type of information:
(Q)SAR
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: TGD guideline, QSAR calculation, acceptable with restrictions
Justification for type of information:
QSAR prediction: migrated from IUCLID 5.6

Data source

Reference
Reference Type:
publication
Title:
Unnamed
Year:
1995

Materials and methods

Principles of method if other than guideline:
This equation is based on linear regression analysis and log Kow as descriptor variable with the assumption of an equilibrium state. Sablijic and Gusten developed separate equations for different classes of chemicals. The equation for hydrophobics has been used here.
GLP compliance:
no
Remarks:
not applicable
Type of method:
other: calculation
Media:
soil

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
Eight representative components of the streams in this category have been identified and their Koc calculated.
Specific details on test material used for the study:
Details on properties of test surrogate or analogue material (migrated information):
not applicable
Radiolabelling:
no

Study design

Test temperature:
not applicable

HPLC method

Details on study design: HPLC method:
not applicable

Batch equilibrium or other method

Details on sampling:
not applicable
Details on matrix:
not applicable
Details on test conditions:
not applicable
Computational methods:
not applicable

Results and discussion

Adsorption coefficient
Type:
log Koc
Value:
1.46 - 4.71

Results: HPLC method

Details on results (HPLC method):
not applicable

Results: Batch equilibrium or other method

Adsorption and desorption constants:
not applicable
Recovery of test material:
not applicable
Concentration of test substance at end of adsorption equilibration period:
not applicable
Concentration of test substance at end of desorption equilibration period:
not applicable
Details on results (Batch equilibrium method):
not applicable
Statistics:
not applicable

Any other information on results incl. tables

Based on a log Kow range of 1.68 -5.7.

Applicant's summary and conclusion

Validity criteria fulfilled:
not applicable
Conclusions:
The calculated log Koc range is 1.46-4.71
Executive summary:

An experimental log Koc is not available for any members of this category. In the absence of measured data the use of a QSAR to predict the log Koc is an appropriate technique to use. The calculated log Koc of this category ranges from 1.46 -4.71