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Environmental fate & pathways

Adsorption / desorption

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Administrative data

Endpoint:
adsorption / desorption
Remarks:
other: Calculation
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
key study
Study period:
1982
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: see 'Remark'
Remarks:
This data was taken from the Handbook of Chemical Property Estimation Methods which describes the methods used for estimating bioconcentration factors in aquatic organisms. These methods are based on data from laboratory experiments that were designed to maintain relatively constant amounts of the chemical in the water environment, and where equilibrium concentrations of the chemical could be ascertained. This handbook is well recognised and reliable.
Cross-referenceopen allclose all
Reason / purpose:
reference to same study
Reason / purpose:
reference to other study

Data source

Reference
Reference Type:
review article or handbook
Title:
Handbook of Chemical Property Estimation Methods: Environmental Behavior of Organic Compounds
Author:
Lyman, W.J., Rosenblatt, D.H. and Reehl, W.J.
Year:
1982
Bibliographic source:
Handbook of Chemical Property Estimation Methods: Environmental Behavior of Organic Compounds

Materials and methods

Test guideline
Qualifier:
no guideline required
Principles of method if other than guideline:
This data was taken from the Handbook of Chemical Property Estimation Methods which describes the methods used for estimating bioconcentration factors in aquatic organisms. These methods are based on data from laboratory experiments that were designed to maintain relatively constant amounts of the chemical in the water environment, and where equilibrium concentrations of the chemical could be ascertained.
GLP compliance:
no
Remarks:
not required
Type of method:
other: Calculation
Media:
other: Calculation

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
- Name of test material (as cited in study report): Hexyl Salicylate
Specific details on test material used for the study:
Details on properties of test surrogate or analogue material (migrated information):
Not relevant
Radiolabelling:
no

Study design

Test temperature:
Not relevant

HPLC method

Details on study design: HPLC method:
Not relevant

Batch equilibrium or other method

Analytical monitoring:
not required
Details on sampling:
Not relevant
Details on matrix:
Not relevant
Details on test conditions:
Not relevant
Computational methods:
Not relevant

Results and discussion

Adsorption coefficient
Type:
Koc
Value:
2 981
Partition coefficients
Type:
other: Not relevant QSAR calculation
Remarks on result:
other: A quantitative result is not provided for the partition coefficient for adsorption/desorption, since the Koc was predicted via QSAR calculation.

Results: HPLC method

Details on results (HPLC method):
Not relevant

Results: Batch equilibrium or other method

Adsorption and desorption constants:
Not relevant
Recovery of test material:
Not relevant
Concentration of test substance at end of adsorption equilibration period:
Not relevant
Concentration of test substance at end of desorption equilibration period:
Not relevant
Transformation products:
no
Details on results (Batch equilibrium method):
Not relevant
Statistics:
Not relevant

Any other information on results incl. tables

Table 1: results

Molecular Weight

Log K(ow)

Log (l/s)

l/s (l/mol)

S (mol/L)

S (mg/L)

Log BCF calc.

BCF

Bioaccumulation Significant?

S measured mg/L

Vp mmHg at 20°C

VOC defined as vp >0.076 mm Hg

HLC calc Pa m3/mol

HLC Quoted/measured Pa m3/mol

Ex Croner Env

LogKoc calc

Koc calc

Koc quoted/measured

Interpretation of Koc

Log Koc calc

Koc calc

222

5.5

5.05

1.13E+05

8.88E-06

2

3.95

8913

Y

2.0

0.01

N

150.1

H

5.15

1E+04

 3.5E+04  

(Based on BAC & HCA)

H

3.5

2981

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Remarks:
validated method
Conclusions:
The Koc for Hexyl salicylate was estimated to be 2981. This means that Hexyl Salicylate has a slight mobility in soil.
Executive summary:

The Koc for Hexyl salicylate was estimated to be 2981. This suggests that Hexyl Salicylate has a slight mobility in soil.