Registration Dossier

Administrative data

Endpoint:
adsorption / desorption
Remarks:
adsorption/desorption
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Cross-reference
Reason / purpose for cross-reference:
reference to other study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2007
Report date:
2007

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: EEC Directive 92/69/EEC and the OECD Guidelines for the Testing of Chemicals Soil Adsorption EEC Method C19, OECD Method 121
GLP compliance:
yes
Type of method:
HPLC estimation method
Media:
soil

Test material

Constituent 1
Reference substance name:
-
EC Number:
482-330-9
EC Name:
-
Cas Number:
144020-22-4
Molecular formula:
C17H26O
IUPAC Name:
Reaction products of acetic anhydride and 1,5,10-trimethyl-1,5,9-cyclodecatriene

Study design

Batch equilibrium or other method

Details on test conditions:
Instrument: Hewlett Packard 1200 Series Liquid Chromatograph
Column: Hypersil CPS (25 cm x 4.6 mm internal diameter)
Column temperature: 25°C
Mobile phase composition: Methanol:water (55:45 v/v)
Flow rate: 1.0 ml/min
Injection volume: 20 El
Detector: UV at 210 nm
Computational methods:
A mean exponential regression of the known adsorption coefficients of the standards versus their capacity factors was prepared, from which the adsorption coefficient of Trimofix O was calculated.

Results and discussion

Adsorption coefficient
Type:
log Koc
Value:
ca. 4.1

Applicant's summary and conclusion

Conclusions:
The major components of Trimofix O were found to have log10Koc values between 4.0 and 4.2.