Registration Dossier

Administrative data

Endpoint:
phototransformation in air
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

Reference
Reference Type:
publication
Title:
Kinetics and mechanisms of the gas-phase reactions of the hydroxyl radical with organic compounds
Author:
Atkinson R
Year:
1989
Bibliographic source:
J. Phys. Chem. Ref. Data, Monograph No. 1.

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
Calculation based on measured OH degradation rate constant
GLP compliance:
no

Test material

Reference
Name:
Unnamed
Type:
Constituent

Study design

Estimation method (if used):
PHOTOCHEMICAL REACTION WITH OH RADICALS
- Concentration of OH radicals: 500000 molecule/cm³
- Degradation rate constant: 0.0000000000002176 cm³/(molecule*sec)
- Temperature for which rate constant was calculated: 25 °C
- Computer programme: AOP v1.92
- Other: 24-h day
Details on light source:
- flash photolysis

Results and discussion

Dissipation half-life of parent compound
DT50:
70.7 d
Test condition:
half-life calculated for the following conditions using the equitation cited in TGD, Part II: sensitiser for indirect photolysis: OH; 0.5E+06 molecules/cm³; 24 h day
Transformation products:
not measured

Applicant's summary and conclusion