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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Endpoint:
adsorption / desorption: screening
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because the physicochemical properties of the substance indicate that it can be expected to have a low potential for adsorption
Endpoint:
adsorption / desorption, other
Remarks:
other: calculation of log Koc for ionized molecule
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
supporting study
Study period:
2008
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method
Qualifier:
no guideline followed
GLP compliance:
no
Key result
Type:
Koc
Value:
49 L/kg
Remarks on result:
other: pH 5.0
Key result
Type:
log Koc
Value:
1.69 dimensionless
Remarks on result:
other: pH 5.0
Key result
Type:
Koc
Value:
49 L/kg
Remarks on result:
other: pH 7.0
Key result
Type:
log Koc
Value:
1.69 dimensionless
Remarks on result:
other: pH 7.0
Conclusions:
The Koc of the substance was calculated following Franco & Trapp (2008) to be 49 (logKoc = 1.69) at pH 5 and 7.

Description of key information

The information for adsorption/desorption is currently being updated according to the ECHA Final Decision CCH-D-2114571346-45-01/F (deadline 11-01-2024).


 


The Koc of the substance was calculated following Franco and Trapp (2008) to be 49 (logKoc = 1.69) at pH 5 and 7.

Key value for chemical safety assessment

Koc at 20 °C:
49

Additional information

Estimates of the Koc were made according to Franco and Trapp (2008) yielding Koc value of 49 (logKoc = 1.69) at pH 5 and 7. A pKa of 9.78 and a log Pow of -0.26 (uncharged molecule) were used as input parameters. As pH 7 is considered most representative as environmental pH, the related Koc is used as the key value for the chemical safety assessment.