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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Data is from computational model developed by USEPA

Data source

Reference
Reference Type:
other: Prediction model
Title:
Adsorption by EPI (Estimation Programs Interface) Suite
Author:
Sustainability Support Service (Europe) AB - estimated
Year:
2015
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
GLP compliance:
no
Type of method:
other: estimation
Media:
soil

Test material

Constituent 1
Chemical structure
Reference substance name:
Tetrasodium 1-acetamido-2-hydroxy-3-(4-((4-sulphonatophenylazo)-7-sulphonato-1-naphthylazo))naphthalene-4,6-disulphonate
EC Number:
219-746-5
EC Name:
Tetrasodium 1-acetamido-2-hydroxy-3-(4-((4-sulphonatophenylazo)-7-sulphonato-1-naphthylazo))naphthalene-4,6-disulphonate
Cas Number:
2519-30-4
Molecular formula:
C28H21N5O14S4.4Na
IUPAC Name:
tetrasodium 4-acetamido-5-hydroxy-6-({7-sulfonato-4-[(4-sulfonatophenyl)diazenyl]-1-naphthyl}diazenyl)naphthalene-1,7-disulfonate
Constituent 2
Reference substance name:
C.I. FOOD BLACK 1
IUPAC Name:
C.I. FOOD BLACK 1
Details on test material:
- Name of test material (as cited in study report): C.I. FOOD BLACK 1- Molecular formula (if other than submission substance): C28-H21-N5-O14-S4.4Na- Molecular weight (if other than submission substance): 867.6873- Smiles notation (if other than submission substance): c12c(c(ccc1NC(C)=O)S(=O)(=O)[O-])cc(S(=O)(=O)[O-])c(c2O)\N=N\c1c2c(c(\N=N\c3ccc(S(=O)(=O)[O-])cc3)cc1)ccc(c2)S(=O)(=O)[O-].[Na+].[Na+].[Na+].[Na+]- InChl (if other than submission substance): GMMAPXRGRVJYJY-TWEFBAQVSA-J- Substance type:Organic- Physical state:Solid
Radiolabelling:
not specified

Study design

Batch equilibrium or other method

Analytical monitoring:
not specified

Results and discussion

Adsorption coefficient
Type:
Koc
Value:
41 800 000
Temp.:
25 °C
Remarks on result:
other: Estimated via MCI method

Applicant's summary and conclusion

Validity criteria fulfilled:
not specified
Conclusions:
The soil adsorption coefficient (Koc) value of C.I. FOOD BLACK 1 is estimated to be 41800000 L/kg, indicating that it is has a high sorption to soil and sediment and therefore have negligible migration potential to groundwater.
Executive summary:

The soil adsorption coefficient (Koc) value of C.I. FOOD BLACK 1 is estimated to be 41800000 L/kg, indicating that it is has a high sorption to soil and sediment and therefore have negligible migration potential to groundwater.