Registration Dossier
Registration Dossier
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EC number: 208-523-8 | CAS number: 532-02-5
Biodegradation in soil
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)
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:
- 2 011
- 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
- Test type:
- other: Estimated
Test material
- Reference substance name:
- Sodium naphthalene-2-sulphonate
- EC Number:
- 208-523-8
- EC Name:
- Sodium naphthalene-2-sulphonate
- Cas Number:
- 532-02-5
- Molecular formula:
- C10H8O3S.Na
- IUPAC Name:
- sodium naphthalene-2-sulphonate
- Details on test material:
- - Name of test material (as cited in study report): Sodium naphthalene-2-sulphonate
- Substance type: Organic
Constituent 1
Study design
- Oxygen conditions:
- other: estimation
Results and discussion
% Degradation
- Soil No.:
- #1
- % Degr.:
- 50
- Parameter:
- other: Half life
- Sampling time:
- 30 d
Half-life / dissipation time of parent compound
- Soil No.:
- #1
- DT50:
- 30 d
- Type:
- other: estimated data
- Remarks on result:
- other: other details not available
Any other information on results incl. tables
|
Mass Amount(percent) |
Half-Life(hr) |
Emissionskg/hr) |
Soil |
77.2 |
720 |
1000 |
|
Fugacity (atm) |
Reaction(kg/hr) |
Advection(kg/hr) |
Reaction (percent) |
Advection (percent) |
Soil |
3.03e-014 |
1.39e+003 |
0 |
46.4 |
0 |
Applicant's summary and conclusion
- Conclusions:
- EPI Suite has estimated that Sodium naphthalene-2-sulphonate is expected to be found predominantly in soil and it’s persistence estimate is based on its transformation in this medium. Its half-life in soil, 30 days (720 hrs), does exceeds the threshold of 120 days as per Annex XIII of REACH. Therefore, Sodium naphthalene-2-sulphonate is estimated to be not persistent in the soil environment.
- Executive summary:
EPI Suite has estimated that Sodium naphthalene-2-sulphonate is expected to be found predominantly in soil and it’s persistence estimate is based on its transformation in this medium. Its half-life in soil, 30 days (720 hrs), does exceeds the threshold of 120 days as per Annex XIII of REACH. Therefore, Sodium naphthalene-2-sulphonate is estimated to be not persistent in the soil environment.
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