Registration Dossier

Administrative data

Endpoint:
phototransformation in air
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
Title:
No information
Author:
Aopwin v.1.92a
Year:
2009

Materials and methods

Principles of method if other than guideline:
Method: other (calculated): AopWin v.1.92a
GLP compliance:
no

Study design

Light source:
sunlight
Details on test conditions:
Sensitiser (for indirect photolysis): OH
Sensitiser concentration: 1500000 molecule/cm³

Results and discussion

Any other information on results incl. tables

HYDROXYL RADICALS
Hydrogen abstraction       =0.1360 x 10^-12 cm3/molecules-sec
Reaction with N, S and -OH =0.1400 x 10^-12 cm3/molecules-sec
Addition to aromatic Ring* =28.2124x 10^-12 cm3/molecules-sec
------------------------------------------------------------
-TOTAL OH Rate Constant = 28.4884x10^-12 cm3/molecules-sec
*designates estimation using assumed value

half life = 4.505hr = 0.375 day
(12 hrs/day; concentration of senziter: 1.5x10^6 OH/cm3)

Rate constant (for indirect photolysis):  0.0000000000284884 cm³/(molecule*sec)
Degradation in % (for indirect photolysis):  50  after 0.4 day(s)

Applicant's summary and conclusion

Conclusions:
Fairly rapid photodegradation.