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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
calculation (if not (Q)SAR)
Remarks:
estimated by calculation
Adequacy of study:
other information
Reliability:
other: BUA report
Rationale for reliability incl. deficiencies:
other: No reliability is given as this is a summary entry for the BUA report.

Data source

Referenceopen allclose all

Reference Type:
secondary source
Title:
2,4-Dichloranilin; 2,5-Dichloranilin; 3,4-Dichloranilin
Author:
Beratergremium für umweltrelevante Altstoffe (BUA)
Year:
1994
Bibliographic source:
Wissenschaftliche Verlagsgesellschaft, BUA report 140
Reference Type:
publication
Title:
Estimation Method for OH-Rate Constants.
Author:
Atkinson R.
Year:
1988
Bibliographic source:
Organisation for Economic Co-Operation and Development (OECD)-Test Guideline on Photochemical Oxidative Degradation in the Atmosphere; Umweltbundesamt (UBA), Germany, pp 19-43
Reference Type:
other company data
Title:
Unnamed
Year:
1989

Materials and methods

Principles of method if other than guideline:
BUA report
=> calculation
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
2,4-dichloroaniline
EC Number:
209-057-8
EC Name:
2,4-dichloroaniline
Cas Number:
554-00-7
Molecular formula:
C6H5Cl2N
IUPAC Name:
2,4-dichloroaniline

Results and discussion

Any other information on results incl. tables

Bayer AG, 1989

According to the calculation method of Atkinson (1988) the following rate constant results for the photo-oxidative degradation of 2,4-dichloroaniline by reaction with OH radicals in the troposphere (1. reaction step at 25 °C):

 

KOH= 29.7 x 10E-12 cm³/molecule x s

 

A half-life (t1/2) of 13 h for the substance can be calculated from the above mentioned rate constant, based on an average OH-radical concentration of 5x10E5 molecules/cm³.

Applicant's summary and conclusion