Registration Dossier
Registration Dossier
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EC number: 224-909-9 | CAS number: 4548-53-2
Biodegradation in water and sediment: simulation tests
Administrative data
- Endpoint:
- biodegradation in water and sediment: simulation tests
- 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:
- Bio-degradation in water and sediment by EPI (Estimation Programs Interface) Suite
- Author:
- Sustainability Support Service (Europe) AB - estimated
- Year:
- 2 016
- 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 by EPI Suite estimation database
- GLP compliance:
- no
Test material
- Reference substance name:
- Disodium 3-[(2,4-dimethyl-5-sulphonatophenyl)azo]-4-hydroxynaphthalene-1-sulphonate
- EC Number:
- 224-909-9
- EC Name:
- Disodium 3-[(2,4-dimethyl-5-sulphonatophenyl)azo]-4-hydroxynaphthalene-1-sulphonate
- Cas Number:
- 4548-53-2
- Molecular formula:
- C18H16N2O7S2.2Na
- IUPAC Name:
- disodium 3-[(2,4-dimethyl-5-sulfonatophenyl)diazenyl]-4-hydroxynaphthalene-1-sulfonate
- Reference substance name:
- FD and C Red no 4
- IUPAC Name:
- FD and C Red no 4
- Details on test material:
- - Name of test material (as cited in study report): FD&C Red No. 4- Molecular formula (if other than submission substance): C18-H14-N2-O7-S2.2NaC18-H16-N2-O7-S2.2Na- Molecular weight (if other than submission substance): 480.4276 g/mmol- Substance type: Organic- Physical state: No data available
Constituent 1
Constituent 2
Study design
- Oxygen conditions:
- other: estimation
- Inoculum or test system:
- not specified
Results and discussion
Mean total recoveryopen allclose all
- Compartment:
- other: water, material (mass) balance
- % Recovery:
- 5.22
- Compartment:
- other: sediment, material (mass) balance
- % Recovery:
- 25.9
% Degradationopen allclose all
- % Degr.:
- 50
- Parameter:
- other: Half life
- Sampling time:
- 1 440 h
- % Degr.:
- 50
- Parameter:
- other: Half Life
- Sampling time:
- 13 000 h
Half-life of parent compound / 50% disappearance time (DT50)open allclose all
- Compartment:
- water
- DT50:
- 1 440 h
- Type:
- other: estimated
- Temp.:
- 25 °C
- Compartment:
- sediment
- DT50:
- 13 000 h
- Type:
- other: estimated
- Temp.:
- 25 °C
- Transformation products:
- not specified
- Evaporation of parent compound:
- not specified
- Volatile metabolites:
- not specified
- Residues:
- not specified
Any other information on results incl. tables
| Mass Amount (percent) | Half-Life (hr) | Emissions (kg/hr) |
Water | 5.22 | 1440 | 1000 |
Sediment | 25.9 | 13000 | 0 |
| Fugacity (atm) | Reaction (kg/hr) | Advection (kg/hr) | Reaction (percent) | Advection (percent) |
Water | 2.25e-028 | 287 | 597 | 9.57 | 19.9 |
Sediment | 3.74e-028 | 158 | 59.2 | 5.281.97 | 0.00102 |
Applicant's summary and conclusion
- Conclusions:
- Half life period of FD and C Red no 4 in water is observed to be 60 days (1440 hrs.) while in sediment it is 542 days (13000 hrs.).Based on these half life values of FD and C Red no 4, it is concluded that the chemical is persistent in both water and sediment medium.
- Executive summary:
Half life period of FD and C Red no 4 in water is observed to be 60 days (1440 hrs.) while in sediment it is 542 days (13000 hrs.).Based on these half life values of FD and C Red no 4, it is concluded that the chemical is persistent in both water and sediment medium.
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