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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Remarks:
other: Koc estimation
Type of information:
calculation (if not (Q)SAR)
Remarks:
Migrated phrase: estimated by calculation
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Accepted calculation method

Data source

Reference
Title:
Technical Guidance Document on Risk Assessment
Author:
EU Commission
Year:
2003

Materials and methods

Principles of method if other than guideline:
Koc estimated via an accepted calculation method

Test material

Constituent 1
Reference substance name:
811-97-0
IUPAC Name:
811-97-0
Constituent 2
Chemical structure
Reference substance name:
Norflurane
EC Number:
212-377-0
EC Name:
Norflurane
Cas Number:
811-97-2
Molecular formula:
C2H2F4
IUPAC Name:
1,1,1,2-tetrafluoroethane

Results and discussion

Partition coefficients
Phase system:
other: log Koc
Type:
other: log Koc
Value:
1.571
Remarks on result:
other: This value equates to a Koc of 37.26 l/kg

Any other information on results incl. tables

The organic carbon-normalised partition coefficient was estimated by considering the equation for non-hydrophobic substances reported in the EU TGD (2003) and the experimentally determined log Kow (1.06).

log Koc = 0.52 log Kow + 1.02 = 0.52 x 1.06 +1.02 = 1.5712

Therefore Koc = 37.26 l / kg

Applicant's summary and conclusion