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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
publication
Title:
Biodegradation and Bioaccumulation Data of Existing Chemicals Based on the CSCL Japan.
Author:
Chemical Inspection & Testing Institute Japan (ed.)
Year:
1992
Bibliographic source:
Published by Japan Chemical Industry Ecology-Toxicology & Information Center, Oct 1992

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 301 C (Ready Biodegradability: Modified MITI Test (I))
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Propionaldehyde
EC Number:
204-623-0
EC Name:
Propionaldehyde
Cas Number:
123-38-6
Molecular formula:
C3H6O
IUPAC Name:
propanal

Study design

Oxygen conditions:
aerobic
Inoculum or test system:
activated sludge (adaptation not specified)
Details on inoculum:
Sludge was sampled from several places in Japan. Established and freshly sampled material was mixed and cultured under controlled conditions at the testing facility. Visual and chemical characteristics as well as activity of the sludge were surveyed to ensure that material of sufficient quality was used in the study.
Duration of test (contact time):
28 d
Initial test substance concentration
Initial conc.:
100 mg/L
Based on:
test mat.
Parameter followed for biodegradation estimation
Parameter followed for biodegradation estimation:
O2 consumption
Reference substance
Reference substance:
aniline

Results and discussion

% Degradation
Parameter:
% degradation (O2 consumption)
Value:
ca. 91 - 97
Sampling time:
28 d

Applicant's summary and conclusion

Interpretation of results:
readily biodegradable