Registration Dossier
Registration Dossier
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EC number: 201-182-6 | CAS number: 79-16-3
Phototransformation in soil
Administrative data
- Endpoint:
- phototransformation in soil
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Study meets generally accepted scientific principles, acceptable for assessment
Data source
Reference
- Reference Type:
- publication
- Title:
- Intermediates Produced in the Flash Photolysis of Acetone and Amides in Aqueous Solution.
- Author:
- Nakashima M and Hayon E
- Year:
- 1 971
- Bibliographic source:
- J Phys Chem 75: 1910-1914.
Materials and methods
Test guideline
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- Method: other (measured): Flash-photolysis test
- GLP compliance:
- no
Test material
- Reference substance name:
- Reference substance 001
- Details on test material:
- - Test type: air-free 20 mM acetone solution
TS-Freetext:
aqueous solution of acetone and N-methylacetamide
Constituent 1
Study design
- Analytical monitoring:
- not specified
- Light spectrum: wavelength in nm:
- > 200
- Details on test conditions:
- - flash photolysis apparatus
- energy of flashes: 2000-3000 J
- water purified by triple distillation, radiolysis and photolysis
- deoxygenation of solutions by sparging with prepurified nitrogen
Duration of test at given test condition
- Initial conc. measured:
- 14.6 other: g/l
Results and discussion
Spectrum of substance
- Parameter:
- max lambda
- Value:
- 340 nm
Any other information on results incl. tables
- Intermediates observed in the acetone-sensitized photochemical decomposition of amides in aqueous solution at pH 5.5
- system: 10 mM (581 mg/l) acetone + 0.2 M (14.6 g/l) N-methylacetamide
- max. lambda: 340 nm
- second order rate constant: 1.8E09 M^-1 s^-1
Applicant's summary and conclusion
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