Registration Dossier

Environmental fate & pathways

Biodegradation in water: screening tests

Administrative data

Endpoint:
biodegradation in water: ready biodegradability
Type of information:
experimental study
Adequacy of study:
key study
Study period:
before 1993-10-28
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
other: information granted by ECHA on substance registered before more than 12 years
Title:
Unnamed

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
OECD Guideline 301 D (Ready Biodegradability: Closed Bottle Test)
Deviations:
not specified
GLP compliance:
yes

Test material

Reference
Name:
Unnamed
Type:
Constituent

Study design

Duration of test (contact time):
28 d
Reference substance
Reference substance:
acetic acid, sodium salt

Results and discussion

% Degradation
Parameter:
% degradation (TOC removal)
Value:
< 10
Sampling time:
28 d
Details on results:
Points of degradation plot (test substance):1.9 % degradation after 2 d4.8 % degradation after 5 d5.4 % degradation after 9 d5.4 % degradtaion after 12 d5.4 % degradation after 21 d5.6 % degradation after 28 dPoints of degradation plot (reference substance)0 % degradation after 2 d10.4 % degeradation after 5 d30.6 % degradation after 9 d35.8 % degradation after 12 d46.2 % degradation after 21 d76.5 % degradation after 28 d82 % degradation after 28 d

Applicant's summary and conclusion

Interpretation of results:
other: not readily biodegradable