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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
biodegradation in water: ready biodegradability
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1989
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study without detailed documentation
Qualifier:
according to guideline
Guideline:
other: EU method C.7
Deviations:
not specified
GLP compliance:
yes
Inoculum or test system:
not specified
Reference substance:
acetic acid, sodium salt
Key result
Parameter:
% degradation (CO2 evolution)
Value:
1.8
Sampling time:
28 d
Details on results:
Points of degradation plot (test substance):
0 % degradation after 5 d
2 % degradation after 10 d
0 % degradation after 15 d
2 % degradation after 20 d
2 % degradation after 25 d
2 % degradation after 28 d
Results with reference substance:
Points of degradation plot (reference substance):
55 % degradation after 5 d
78 % degradation after 10 d
77 % degradation after 15 d
77 % degradation after 20 d
77 % degradation after 25 d
77 % degradation after 28 d

As already stated, the substance is, by its nature transformed during use and incorporated, through chemical bonds, in a polymeric type matrix.

Validity criteria fulfilled:
not specified
Interpretation of results:
not readily biodegradable

Description of key information

Key value for chemical safety assessment

Biodegradation in water:
under test conditions no biodegradation observed
Type of water:
freshwater

Additional information