Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
calculation (if not (Q)SAR)
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
results derived from a valid (Q)SAR model and falling into its applicability domain, with adequate and reliable documentation / justification

Data source

Reference
Reference Type:
other: estimated by calculation
Title:
Unnamed
Year:
2013

Materials and methods

GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
1-(2,4-dichlorophenyl)ethan-1-one
EC Number:
218-780-8
EC Name:
1-(2,4-dichlorophenyl)ethan-1-one
Cas Number:
2234-16-4
Molecular formula:
C8H6Cl2O
IUPAC Name:
1-(2,4-dichlorophenyl)ethan-1-one
Details on test material:
- Name of test material (as cited in study report): Ethanone, 1-(2,4-dichlorophenyl)-

Results and discussion

Dissipation half-life of parent compound
Key result
DT50:
10.897 d
Test condition:
25 ºC

Any other information on results incl. tables

Atmospheric Oxidation (25 deg C) [AopWin v1.92]:

Hydroxyl Radicals Reaction:

OVERALL OH Rate Constant =  0.9816 E-12 cm3/molecule-sec

Half-Life =   10.897 Days (12-hr day; 1.5E6 OH/cm3)

Applicant's summary and conclusion

Validity criteria fulfilled:
not applicable
Conclusions:
The calculated dissipation half-life of the parent compound is 10.897 Days (12-hr day; 1.5E6 OH/cm3) (EPI Suite, EPA (USA) v4.0/ AopWin v1.92estimate).
Executive summary:

The calculated dissipation half-life of the parent compound is 10.897 Days (12-hr day; 1.5E6 OH/cm3) (EPI Suite, EPA (USA) v4.0/ AopWin v1.92 estimate).