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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

Phototransformation in air

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Administrative data

Endpoint:
phototransformation in air
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Acceptable, well documented publication which meets basic scientific principles.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1987

Materials and methods

Principles of method if other than guideline:
- flashlight photolysis ( generation of OH radicals)
- resonance fluorescence (determination of OH radical concentration during reaction with o-chloronitrobenzene)
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
1-chloro-2-nitrobenzene
EC Number:
201-854-9
EC Name:
1-chloro-2-nitrobenzene
Cas Number:
88-73-3
Molecular formula:
C6H4ClNO2
IUPAC Name:
1-chloro-2-nitrobenzene

Study design

Light source:
not specified
Light spectrum: wavelength in nm:
> 115
Details on light source:
To produce OH radicals a lamp emits flashlight with an energy of 2 J.
Details on test conditions:
temperature: 25 °C
pressure: 133 mbar

Results and discussion

Any other information on results incl. tables

- rate constant of reaction between o-chloronitrobenzene and OH radicals: 8.7 ( ± 0.6) x 10 -4 cm³/s

- this results in a tropospheric residence of 270 ( ± 20) days (assuming 5 x 10E5 OH-molecules/cm³)

- t1/2 = 135 days

Applicant's summary and conclusion