Registration Dossier

Administrative data

Endpoint:
adsorption / desorption: screening
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method

Data source

Reference
Reference Type:
other: QSAR report
Title:
Unnamed
Year:
2017
Report date:
2017

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: REACH Technical Guidance Document on Risk Assessment
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
1,1,2,2,3,3,4,4,4-nonafluoro-N,N-bis(2-hydroxyethyl)butane-1-sulphonamide
EC Number:
252-044-7
EC Name:
1,1,2,2,3,3,4,4,4-nonafluoro-N,N-bis(2-hydroxyethyl)butane-1-sulphonamide
Cas Number:
34455-00-0
Molecular formula:
C8H10F9NO4S
IUPAC Name:
1,1,2,2,3,3,4,4,4-nonafluoro-N,N-bis(2-hydroxyethyl)butane-1-sulfonamide

Results and discussion

Adsorption coefficient
Key result
Type:
Koc
Value:
200 dimensionless

Any other information on results incl. tables

The Koc value for FBSEE diol was calculated using equation from European Chemicals Bureau: Technical Guidance Document on Risk Assessment, Chapter 4, Table 4, page 26.

Predominantly hydrophobics: Log Koc (unitless) = 0.81 logKow + 0.10

Experimental log Kow of FBSEE Diol = 2.7 at 22 °C;

Log Koc (unitless) = 0.81 x (2.7) + 0.10 = 2.3;

Koc (unitless) = 200

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
The calculated Koc for FBSEE diol is 200 (unitless) using the Technical Guidance equation.
Executive summary:

Soil-water partition coefficient (Koc and log Koc ) can be calculated using the equation from European Chemicals Bureau: Technical Guidance Document on Risk Assessment, Chapter 4, Table 4, page 26: for predominantly hydrophobics: Log Koc (unitless) = 0.81 logKow + 0.10, FBSEE diol has an experimental log Kow of 2.7 at 22 °C. Based on the equation, the calculated log Koc (unitless) was 2.3, the Koc was 200 (unitless).