Registration Dossier

Administrative data

Endpoint:
adsorption / desorption: screening
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Scientifically acceptable calculation method

Data source

Referenceopen allclose all

Reference Type:
publication
Title:
Estimation of the soil-water partition coefficient normalized to organic carbon for ionizable organic chemicals
Author:
Franco A, Trapp S
Year:
2008
Bibliographic source:
Environmental Toxicology and Chemistry, 27(10), 1995-2004
Reference Type:
publication
Title:
Influence of the soil pH on the sorption of ionizable chemicals: modeling advances
Author:
Franco A, Fu W, Trapp S
Year:
2009
Bibliographic source:
Environ Toxicol Chem 28: 458-464

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other: calculation of log Koc for ionized molecule
Deviations:
not specified
GLP compliance:
not specified
Remarks:
calculation of log Koc for ionized molecule
Type of method:
other:
Media:
soil

Test material

Reference
Name:
Unnamed
Type:
Constituent
Radiolabelling:
not specified

Study design

Test temperature:
25

Batch equilibrium or other method

Analytical monitoring:
not specified

Results and discussion

Adsorption coefficientopen allclose all
Sample No.:
#1
Type:
Koc
Value:
18 dimensionless
pH:
5
Temp.:
25 °C
Sample No.:
#2
Type:
Koc
Value:
17 dimensionless
pH:
7
Temp.:
25 °C
Sample No.:
#3
Type:
Koc
Value:
12 dimensionless
pH:
8
Temp.:
25 °C
Sample No.:
#4
Type:
log Koc
Value:
1.27 dimensionless
pH:
5
Temp.:
25 °C
Sample No.:
#5
Type:
log Koc
Value:
1.23 dimensionless
pH:
7
Temp.:
25 °C
Sample No.:
#6
Type:
log Koc
Value:
1.06 dimensionless
pH:
8
Temp.:
25 °C

Any other information on results incl. tables

The data refer to the charged molecule.

Applicant's summary and conclusion