Registration Dossier
Registration Dossier
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EC number: 232-234-6 | CAS number: 7790-94-5
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)
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- accepted calculation method
- Justification for type of information:
- Data is from computational model developed by USEPA
Data source
Reference
- Reference Type:
- other: prediction model
- Title:
- Bio-degradation in water and sediment by EPI (Estimation Programs Interface) Suite
- Author:
- Sustainability Support Services (Europe) AB- estimated
- Year:
- 2 018
- 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:
- Chlorosulphuric acid
- EC Number:
- 232-234-6
- EC Name:
- Chlorosulphuric acid
- Cas Number:
- 7790-94-5
- Molecular formula:
- ClHO3S
- IUPAC Name:
- sulfurochloridic acid
- Test material form:
- liquid
- Details on test material:
- - Name of test material (as cited in study report): chlorosulphuric acid
- Substance type: Inorganic
- Physical state: Liquid
Constituent 1
- Radiolabelling:
- not specified
Study design
- Oxygen conditions:
- other: estimation
- Inoculum or test system:
- not specified
Results and discussion
Mean total recoveryopen allclose all
- Compartment:
- water
- % Recovery:
- 37.7
- Remarks on result:
- other: other details not available
- Compartment:
- sediment
- % Recovery:
- 0.072
% Degradationopen allclose all
- % Degr.:
- 50
- Parameter:
- other: Half life
- Sampling time:
- 15 d
- Remarks on result:
- other: biodegradation in water
- % Degr.:
- 50
- Parameter:
- other: Half Life
- Sampling time:
- 135 d
- Remarks on result:
- other: biodegradation in sediment
Half-life of parent compound / 50% disappearance time (DT50)open allclose all
- Key result
- Compartment:
- water
- DT50:
- 15 d
- Type:
- not specified
- Remarks on result:
- other: other details not available
- Key result
- Compartment:
- sediment
- DT50:
- 135 d
- Type:
- not specified
- Remarks on result:
- other: other details not available
- Transformation products:
- not specified
Any other information on results incl. tables
|
Mass Amount (percent) |
Half-Life (hr) |
Emissions (kg/hr) |
Water |
37.7 |
360 |
1000 |
| Sediment | 0.0725 | 3.24e+003 | 0 |
|
Fugacity (atm) |
Reaction (kg/hr) |
Advection (kg/hr) |
Reaction (percent) |
Advection (percent) |
Water |
2.31e-012 |
1.17e+003 |
608 |
39 |
20.3 |
| Sediment | 2.11e-012 | 0.25 | 0.0234 | 0.00834 | 0.00078 |
Applicant's summary and conclusion
Validity criteria
- Validity criteria fulfilled:
- not specified
- Conclusions:
- Estimated half life of test chemical in water was 15days (360 hrs.) and in sediment estimated to be 135 days (3240 hrs).
- Executive summary:
Estimation Programs Interface (EPI Suite, 2018) prediction model was run to predict the half-life in water and sediment for the test compound. The Test chemical If released in to the environment, 37.7 % of the chemical will partition into water according to the Mackay fugacity model level III and the half-life period of the chemical in water is estimated to be 15days (360 hrs.)The half-life (15 days estimated by EPI suite) indicates that the chemical is not persistent in water and the exposure risk to aquatic animals is low whereas the half-life period of Test chemical in sediment is estimated to be 135 days (3240 hrs). However, as the percentage release of test chemical into sediment is less than 1 %( i.e., reported as 0.0725%) indicates that test chemical is not persistent in sediments.
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