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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
2 (reliable with restrictions)

Data source

Reference
Reference Type:
publication
Title:
Biodegradation and Bioconcentration of Existing Chemical Substances under the Chemical Substances Control Law
Year:
1988
Bibliographic source:
the Official Bulletin of Economy,Trade and Industry

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 301 C (Ready Biodegradability: Modified MITI Test (I))
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
Methyloxirane
EC Number:
200-879-2
EC Name:
Methyloxirane
Cas Number:
75-56-9
Molecular formula:
C3H6O
IUPAC Name:
2-methyloxirane

Study design

Duration of test (contact time):
4 wk
Initial test substance concentration
Initial conc.:
100 other: ppm

Results and discussion

% Degradationopen allclose all
Parameter:
% degradation (TOC removal)
Value:
>= 86
Sampling time:
4 wk
Parameter:
% degradation (test mat. analysis)
Value:
89
Sampling time:
4 wk
Details on results:
Chemical substance determinated to be ready biodegradable

BOD5 / COD results

BOD5 / COD
Parameter:
BOD5
Value:
96 other: %

Applicant's summary and conclusion

Interpretation of results:
readily biodegradable