Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
adsorption / desorption
Remarks:
adsorption
Type of information:
calculation (if not (Q)SAR)
Remarks:
Migrated phrase: estimated by calculation
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)

Data source

Reference
Reference Type:
other: Prediction model
Title:
Adsorption by EPI (Estimation Programs Interface) Suite
Author:
Sustainability Support Service (Europe) AB - estimated
Year:
2016
Bibliographic source:
Estimation Programs Interface Suite™ United States Environmental Protection Agency, Washington, DC, USA. version 4.1

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: Modeling database
Principles of method if other than guideline:
KOCWIN Program (v2.00)
GLP compliance:
no
Type of method:
other: estimation
Media:
soil

Test material

Constituent 1
Chemical structure
Reference substance name:
Sodium naphthalene-2-sulphonate
EC Number:
208-523-8
EC Name:
Sodium naphthalene-2-sulphonate
Cas Number:
532-02-5
Molecular formula:
C10H8O3S.Na
IUPAC Name:
sodium naphthalene-2-sulphonate
Details on test material:
- Name of test material (as cited in study report): Sodium naphthalene-2-sulphonate
- Substance type: Organic

Study design

Test temperature:
25 deg C

Batch equilibrium or other method

Analytical monitoring:
not specified

Results and discussion

Adsorption coefficientopen allclose all
Type:
Koc
Value:
106.1
Temp.:
25 °C
Remarks on result:
other: Estimated via MCI method
Type:
log Koc
Value:
2.02
Temp.:
25 °C
Remarks on result:
other: Estimated via MCI method

Applicant's summary and conclusion

Conclusions:
The soil adsorption coefficient (Koc) value of Sodium naphthalene-2-sulphonate is estimated to be 106.1 L/kg (log Koc = 2.02), indicating that it has low sorption to soil and sediment and moderate migration to ground water
Executive summary:

The soil adsorption coefficient (Koc) value of Sodium naphthalene-2-sulphonate is estimated to be 106.1 L/kg (log Koc = 2.02), indicating that it has low sorption to soil and sediment and moderate migration to ground water