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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
biodegradation in soil
Type of information:
calculation (if not (Q)SAR)
Remarks:
Migrated phrase: estimated by calculation
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: data from EPISUITE

Data source

Reference
Reference Type:
other: Prediction model
Title:
Biodegradation in soil by EPI (Estimation Programs Interface) Suite
Author:
Sustainability Support Service (Europe) AB - estimated
Year:
2017
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:
Fugacity Model III by EPI Suite estimation database
GLP compliance:
no
Test type:
other: Estimated

Test material

Constituent 1
Chemical structure
Reference substance name:
Trisodium 3-hydroxy-4-(4'-sulphonatonaphthylazo)naphthalene-2,7-disulphonate
EC Number:
213-022-2
EC Name:
Trisodium 3-hydroxy-4-(4'-sulphonatonaphthylazo)naphthalene-2,7-disulphonate
Cas Number:
915-67-3
Molecular formula:
C20H14N2O10S3.3Na
IUPAC Name:
trisodium 3-hydroxy-4-[(4-sulfonato-1-naphthyl)diazenyl]naphthalene-2,7-disulfonate
Constituent 2
Reference substance name:
2,7-Naphthalenedisulfonic acid, 3- hydroxy-4-[2-(4-sulfo-1-naphthalenyl)diazenyl]-, sodium salt (1 : 3)
IUPAC Name:
2,7-Naphthalenedisulfonic acid, 3- hydroxy-4-[2-(4-sulfo-1-naphthalenyl)diazenyl]-, sodium salt (1 : 3)
Constituent 3
Reference substance name:
Amaranth dye
IUPAC Name:
Amaranth dye
Test material form:
solid: particulate/powder
Remarks:
migrated information: powder
Details on test material:
Name of test material (as cited in study report): Amaranth dye
Molecular formula (if other than submission substance): C20H11N2Na3O10S3
Molecular weight (if other than submission substance): 604.47
Smiles notation (if other than submission substance): c1ccc2c(c1)c(ccc2S(=O)(=O)[O-])N=Nc3c4ccc(cc4cc(c3O)S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+].[Na+]
InChl (if other than submission substance): 1S/C20H14N2O10S3.3Na/c23-20-18(35(30,31)32)10-11-9-12(33(24,25)26)5-6-13(11)19(20)22-21-16-7-8-17(34(27,28)29)15-4-2-1-3-14(15)16;;;/h1-10,23H,(H,24,25,26)(H,27,28,29)(H,30,31,32);;;/q;3*+1/p-3
Substance type: Organic
Physical state: Solid
Radiolabelling:
not specified

Results and discussion

% Degradation
Soil No.:
#1
% Degr.:
50
Parameter:
other: Half life
Sampling time:
120 d
Half-life / dissipation time of parent compound
Soil No.:
#1
DT50:
120 d
Type:
other: estimated data
Remarks on result:
other: other details not available
Transformation products:
not specified
Evaporation of parent compound:
not specified
Volatile metabolites:
not specified
Residues:
not specified

Any other information on results incl. tables

Level III Fugacity Model

 

 

Mass Amount

(Percent)

Half life (in hours)

Emissions

(kg/hr)

Soil

43.6

2.88x103

1000

 

 

Fugacity

(atm)

Reaction

(kg/hr)

Advection

(kg/hr)

Reaction (percent)

Advection

(percent)

Soil

4.03 x 10-38

1.9 x 103

0

63.3

0

Applicant's summary and conclusion

Conclusions:
The estimated half-life of the test chemical in soil was found to be 120 days which doesnot exceed the threshold of 120 days in as per the Annex XIII of the REACH regulation. Based on this half life value, the test chemical is readily biodegradable [not persistent] in soil.
Executive summary:

The estimated half-life of the test chemical in soil was found to be 120 days which doesnot exceed the threshold of 120 days in as per the Annex XIII of the REACH regulation. Based on this half life value, the test chemical is readily biodegradable [not persistent] in soil.