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Diss Factsheets

Administrative data

Endpoint:
biodegradation in soil
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:
Biodegradation in soil by Environmental Science Center’s PBT profiler
Author:
Environmental Science Center
Year:
2013
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
Guideline:
other: modelling database
Principles of method if other than guideline:
Data is from PBT Profiler database
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
5-aminonaphthalene-2-sulphonic acid
EC Number:
204-351-2
EC Name:
5-aminonaphthalene-2-sulphonic acid
Cas Number:
119-79-9
Molecular formula:
C10H9NO3S
IUPAC Name:
5-aminonaphthalene-2-sulfonic acid
Details on test material:
Name of the test material: 5-aminonaphthalene-2-sulphonic acid
Molecular formula: C10H9NO3S
Molecular weight: 223.26
Physical state: Solid
Substance Type: Organic
Radiolabelling:
not specified

Study design

Oxygen conditions:
other: estmated data
Soil classification:
not specified
Duration of test (contact time)
Soil No.:
#1
Duration:
75 d

Results and discussion

% Degradation
Soil No.:
#1
% Degr.:
50
Parameter:
other: Half life
Sampling time:
75 d
Half-life / dissipation time of parent compound
Soil No.:
#1
DT50:
75 d
Remarks on result:
other: 75 days= 1800 hrs
Transformation products:
not specified
Evaporation of parent compound:
not specified
Volatile metabolites:
not specified
Residues:
not specified

Any other information on results incl. tables

Medium

Half life in Days

Percent in medium

Soil

75

85%

Applicant's summary and conclusion

Conclusions:
Half life period of 5-aminonaphthalene-2-sulphonic acid in Soil was observed to be 75 days which does not exceed the threshold of 120 days as mentioned in Annex XIII of the REACH regulation. Based on these half life values it is concluded that 5-aminonaphthalene-2-sulphonic acid is readily biodegradable (non-persistent) in soil.
Executive summary:
Half life period of 5-aminonaphthalene-2-sulphonic acid in Soil was observed to be 75 days which does not exceed the threshold of 120 days as mentioned in Annex XIII of the REACH regulation. Based on these half life values it is concluded that 5-aminonaphthalene-2-sulphonic acid is readily biodegradable (non-persistent) in soil.

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