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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
phototransformation in air
Type of information:
(Q)SAR
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: QSAR calculations, acceptable with restrictions
Justification for type of information:
QSAR prediction: migrated from IUCLID 5.6

Data source

Reference
Reference Type:
publication
Title:
Kinetics and mechanisms of the gas-phase reactions of the hydroxyl  radical with organic compounds under atmospheric conditions.  
Author:
  Atkinson, R.
Year:
1985
Bibliographic source:
Chem. Rev. 85: 69-201

Materials and methods

Principles of method if other than guideline:
The estimation methods used by AOPWIN are based upon the structure-activity relationship (SAR) methods developed by Dr. Roger Atkinson and co-workers.  AOPWIN incorporates updated fragment and reaction values as cited in Kwok and Atkinson (1995).
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
3a,4,5,6,7,7a-hexahydro-4,7-methano-1H-indene
EC Number:
224-778-8
EC Name:
3a,4,5,6,7,7a-hexahydro-4,7-methano-1H-indene
Cas Number:
4488-57-7
Molecular formula:
C10H14
IUPAC Name:
tricyclo[5.2.1.0²,⁶]dec-3-ene
Details on test material:
Not reported

Study design

Light source:
not specified
Details on light source:
Not reported
Details on test conditions:
Not reported

Results and discussion

Preliminary study:
Not reported
Test performance:
Not reported
Degradation rate constant
Reaction with:
OH radicals
Rate constant:
0 cm³ molecule-1 s-1
Results with reference substance:
Not reported

Any other information on results incl. tables

Hydroxyl Radicals Reaction: OVERALL OH Rate Constant = 65.1610 E-12 cm3/molecule-sec Half-Life = 0.164 Days (12-hr day; 1.5E6 OH/cm3) Half-Life = 1.970 Hrs

Ozone Reaction: OVERALL Ozone Rate Constant = 20.000000 E-17 cm3/molecule-sec Half-Life = 0.057 Days (at 7E11 mol/cm3) Half-Life = 1.375 Hrs

Applicant's summary and conclusion

Conclusions:
The overall OH rate constant was calculated to be 65.1610 E-12 cm3/molecule-sec