Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Currently viewing:

Administrative data

Endpoint:
adsorption / desorption: screening
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: GLP compliant, guideline study, available as an unpulished report, reliable with restrictions
Justification for type of information:
A discussion and report on the read across strategy is given as an attachment in Section 13.
Cross-reference
Reason / purpose for cross-reference:
read-across: supporting information
Reference
Endpoint:
adsorption / desorption: screening
Type of information:
read-across based on grouping of substances (category approach)
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: GLP compliant, guideline study, available as an unpulished report, reliable with restrictions
Justification for type of information:
A discussion and report on the read across strategy is given as an attachment in Section 13.
Reason / purpose for cross-reference:
read-across source
Qualifier:
according to guideline
Guideline:
EU Method C.19 (Estimation of the Adsorption Coefficient (KOC) on Soil and Sewage Sludge Using High Performance Liquid Chromatography (HPLC))
Deviations:
no
GLP compliance:
yes
Type of method:
HPLC estimation method
Radiolabelling:
no
Test temperature:
Clumn temperature 40°C
Details on study design: HPLC method:
HPLC system: Agilent technologies 1100; Polymer laboratories Evaporating light scattering detector ( ELSD) Column temperature: 40°C Mobile phase: Methanol: water (55:45 v/v) Flow rate: 1ml/min pH of mobile phase: 7.0
Type:
log Koc
Value:
> 5.63 dimensionless
Temp.:
20 °C
Remarks on result:
other: temperature not stated so assumed standard
Validity criteria fulfilled:
yes
Conclusions:
The log Koc of Alkenes C20-24 is > 5.63, measured by the HPLC screening method.
Executive summary:

This is a GLP compliant, guideline study and is considered reliable and suitable for use for this edpoint.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2008
Report date:
2008

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method C.19 (Estimation of the Adsorption Coefficient (KOC) on Soil and Sewage Sludge Using High Performance Liquid Chromatography (HPLC))
Deviations:
no
GLP compliance:
yes
Type of method:
HPLC estimation method
Media:
other: calculated using HPLC

Test material

Constituent 1
Reference substance name:
Alkenes, C20-24
IUPAC Name:
Alkenes, C20-24
Details on test material:
Clear, colourless liquid. ENORDET 0241
Specific details on test material used for the study:
Details on properties of test surrogate or analogue material (migrated information):
No data
Radiolabelling:
no

Study design

Test temperature:
Clumn temperature 40°C

HPLC method

Details on study design: HPLC method:
HPLC system: Agilent technologies 1100; Polymer laboratories Evaporating light scattering detector (ELSD)
Column temperature: 40°C
Mobile phase: Methanol: water (55:45 v/v)
Flow rate: 1ml/min
pH of mobile phase: 7.0

Results and discussion

Adsorption coefficient
Type:
log Koc
Value:
> 5.63 dimensionless
Temp.:
20 °C
Remarks on result:
other: temperature not stated so assumed standard

Results: HPLC method

Details on results (HPLC method):
% organic carbon not given ,calculated using HPLC method.

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
The log Koc of Alkenes C20-24 is > 5.63, measured by the HPLC screening method.
Executive summary:

This is a GLP compliant, guideline study and is considered reliable and suitable for use for this edpoint.