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EC number: 202-716-0 | CAS number: 98-95-3
Phototransformation in water
Administrative data
- Endpoint:
- phototransformation in water
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Scientifically acceptable publication
Data source
Referenceopen allclose all
- Reference Type:
- publication
- Title:
- Influence of humic substances on Photolysis of nitroaromatic compounds in aqueous systems
- Author:
- Simmons M.S. & Zepp R.G.
- Year:
- 1 986
- Bibliographic source:
- Water Research 20: 899-904
- Reference Type:
- secondary source
- Title:
- European Union Risk Assessment Report, Nitrobenzene, CAS No: 98-95-3
- Author:
- European Chemicals Bureau
- Year:
- 2 007
- Bibliographic source:
- 3rd Priority List, Volume: 77
Materials and methods
- Study type:
- direct photolysis
- Principles of method if other than guideline:
- Direct photolysis in water was studied in distilled water and in the presence of humic substances respectively. A very diluted aqueous nitrobenzene solution was exposed to irradiation. The influence of humic substances on photoreactions was determined by comparing results in humus-containing water with those in distilled water.
- GLP compliance:
- no
Test material
- Reference substance name:
- Nitrobenzene
- EC Number:
- 202-716-0
- EC Name:
- Nitrobenzene
- Cas Number:
- 98-95-3
- Molecular formula:
- C6H5NO2
- IUPAC Name:
- nitrobenzene
- Details on test material:
- - Name of test material (as cited in study report): Nitrobenzene
Constituent 1
Study design
- Analytical method:
- high-performance liquid chromatography
- Light source:
- other: irradiation
- Light spectrum: wavelength in nm:
- 313
- Details on light source:
- Artificial light source
- Emission wavelength spectrum: 313
- Filters used and their purpose: Corning 0-52 snf 7-37 filters
Sensitiser (for indirect photolysis)
- Type of sensitiser:
- OH radical
Duration of test at given test condition
- Initial conc. measured:
- 0 mol/L
Results and discussion
Spectrum of substance
- Parameter:
- max lambda
- Value:
- 313 nm
Dissipation half-life of parent compound
- DT50:
- 133 d
Any other information on results incl. tables
A direct photolysis constant of 5.2*E-03/d is given.
Applicant's summary and conclusion
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