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EC number: 202-662-8 | CAS number: 98-37-3
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:
- Biodegradation in water and sediment by Environmental Science Center’s PBT profiler
- Author:
- Environmental Science Center
- Year:
- 2 010
- Bibliographic source:
- PBT profiler, Office of Chemical Safety and Pollution Prevention , U.S. Environmental Protection Agency; version 1.301
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: Modelling database
- Principles of method if other than guideline:
- PBT profiler database
- GLP compliance:
- no
Test material
- Reference substance name:
- 3-amino-4-hydroxybenzenesulphonic acid
- EC Number:
- 202-662-8
- EC Name:
- 3-amino-4-hydroxybenzenesulphonic acid
- Cas Number:
- 98-37-3
- Molecular formula:
- C6H7NO4S
- IUPAC Name:
- 3-amino-4-hydroxybenzenesulphonic acid
- Test material form:
- solid: crystalline
- Details on test material:
- - Name of test material : 3-amino-4-hydroxybenzenesulphonic acid
-Substance type-organic
-physical state-crystalline solid.
Constituent 1
- Radiolabelling:
- not specified
Study design
- Oxygen conditions:
- other: estimated database
Results and discussion
Mean total recoveryopen allclose all
- Compartment:
- other: water, material (mass) balance
- % Recovery:
- 31
- Compartment:
- other: sediment, material (mass) balance
- % Recovery:
- 0
% Degradationopen allclose all
- % Degr.:
- 50
- Parameter:
- test mat. analysis
- Sampling time:
- 15 d
- Remarks on result:
- other: Biodegradation in water
- % Degr.:
- 50
- Parameter:
- test mat. analysis
- Sampling time:
- 140 d
- Remarks on result:
- other: biodegradation in sediment
Half-life of parent compound / 50% disappearance time (DT50)open allclose all
- Compartment:
- water
- DT50:
- 15 d
- Remarks on result:
- other: other details not available
- Compartment:
- sediment
- DT50:
- 140 d
- 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
Media |
Half life (days) |
Percent in Medium |
Water |
15 |
31% |
sediment |
140 |
0% |
Applicant's summary and conclusion
- Conclusions:
- 3-amino-4-hydroxybenzenesulphonic acid showed 50 % biodegradation in 15 days in water and 140 days in sediment. This value suggests that 3-amino-4-hydroxybenzenesulphonic acid is likely to be readiliy biodegradable in water. In sediment, it is likely to be persistent.
- Executive summary:
Based on level III fugacity model the half life period of 3-amino-4-hydroxybenzene sulphonic acid was estimated.Half life period of 3-amino-4-hydroxybenzenesulphonic acid in water was estimated to be 15 days while in sediment it is 140 days.Based on these half life values it is concluded that 3-amino-4-hydroxybenzenesulphonic acid is readily biodegradable in water and but not readily biodegradable in sediment as th value exceeds the EPA criteria of 60days.However, since the diffusion of the substance in the sediment as evident from the reported data (0% in sediment) hence persistence in the sediment compartment is not likely to be critical.
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