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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Biodegradation in water: screening tests

Administrative data

Endpoint:
biodegradation in water: ready biodegradability
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:
Bio-degradation in water 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
Guideline:
other: Modelling database
Principles of method if other than guideline:
PBT profiler database
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Sodium 4-aminonaphthalene-1-sulphonate
EC Number:
204-975-5
EC Name:
Sodium 4-aminonaphthalene-1-sulphonate
Cas Number:
130-13-2
Molecular formula:
C10H9NO3S.Na
IUPAC Name:
sodium 4-aminonaphthalene-1-sulfonate
Test material form:
solid: crystalline
Details on test material:
CAS number: 130-13-2
Chemical Name: sodium 4-aminonaphthalene-1-sulphonate
Molecular formula: C10H9NO3S.Na

Study design

Oxygen conditions:
other: modelling database

Results and discussion

% Degradation
Parameter:
other: Halflife
Value:
50
Sampling time:
38 d
Remarks on result:
other: other details not available
Details on results:
Half life = 38 days

Applicant's summary and conclusion

Interpretation of results:
readily biodegradable
Conclusions:
The chemical sodium 4-aminonaphthalene-1-sulphonate is likely to show 50% biodegradation in water in 38 days (half-life) indicating that the chemical is non-persistant in water i.e. readily biodegradable in water
Executive summary:

The chemical sodium 4-aminonaphthalene-1-sulphonate is likely to show 50% biodegradation in water in 38 days (half-life) indicating that the chemical is non-persistant in water i.e. readily biodegradable in water

Media

Half-Life (days)

Percent in
Medium

Water

38

  16%