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
Reference Type:
other: Prediction model
Title:
Phototransformation in air by Environmental Science Center’s PBT profiler
Author:
Environmental Science Center
Year:
2010
Bibliographic source:
PBT profiler, Office of Chemical Safety and Pollution Prevention , U.S. Environmental Protection Agency; version 1.301

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other: Modelling datatbase
Principles of method if other than guideline:
PBT Profiler Estimation database
GLP compliance:
no

Test material

Reference
Name:
Unnamed
Type:
Constituent
Type:
Constituent
Details on test material:
- Name of test material (as cited in study report): 2, 5-diaminobenzenesulphonic acid
- Substance type: Organic
- Physical state: solid

Study design

Light source:
not specified
Duration of test at given test condition
Duration:
66 d
Temp.:
25 °C
Reference substance:
not specified

Results and discussion

% Degradation
% Degr.:
50
Sampling time:
0.42 d
Degradation rate constant
Reaction with:
OH radicals
Rate constant:
0 cm³ molecule-1 s-1
Transformation products:
not specified

Applicant's summary and conclusion

Conclusions:
The chemical 2, 5-diaminobenzenesulphonic acid is not persistent in air medium as the half life period of 2, 5-diaminobenzenesulphonic acid in air is only 0.42 days.
Executive summary:

The atmospheric oxidation half-life of 2, 5-diaminobenzenesulphonic acid was estimated using the level III multimedia model. It was estimated that the substance is not persistent in air medium as the half life period of 2, 5-diaminobenzenesulphonic acid in air is only0.42days. This indicates that 2, 5-diaminobenzenesulphonic acid is rapidly phototransformed in air.