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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
adsorption / desorption: screening
Remarks:
adsorption/desorption
Type of information:
(Q)SAR
Adequacy of study:
key study
Study period:
Not reported
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Derived using calculation method software which has been validated for organic substances.
Justification for type of information:
QSAR is based on calculation method software which has been validated for organic substances.
Guideline:
other: Guidance on information requirements and chemical safety assessment, Chapter R.6: QSARs and grouping of chemicals (May 2008, ECHA)
Principles of method if other than guideline:
The substance's adsorption/desorption co-efficient was estimated using the EUSES version 2.1.2 software package published by the European Commission which has been validated for organic substances.
GLP compliance:
no
Type of method:
other: Estimation software
Computational methods:
A log Pow value of 6.4 was used for the calculation.
Key result
Type:
Koc
Value:
192 000 L/kg
Remarks on result:
other: Koc value of 192000 L/kg predicted using estimated partition coefficient value.
Key result
Type:
log Koc
Value:
5.3 dimensionless
Remarks on result:
other: log Koc value of 5.3 predicted using estimated partition coefficient value.

The estimation software gives a Koc value for the substance of 192000, equivalent to log Koc 5.3.

Validity criteria fulfilled:
not applicable
Remarks:
The software used for the calculation has been validated for organic substances.
Conclusions:
The estimation software gives a Koc value for the substance of 192000, equivalent to log Koc 5.3.
Executive summary:

The substance's adsorption/desorption co-efficient was estimated using the EUSES version 2.1.2 software package published by the European Commission. The estimation software gives a Koc value for the substance of 192000, equivalent to log Koc 5.3.

Description of key information

Key value for chemical safety assessment

Koc at 20 °C:
192 000

Additional information

For the environmental risk assessment, a KOC value of 192000 L/kg (log KOC of 5.3) was calculated within EUSES 2.1.2 based on the log Kow of 6.4.

[LogKoc: 5.3]