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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: inherent biodegradability
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
4 (not assignable)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1979
Report date:
1979

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 302 B (Inherent biodegradability: Zahn-Wellens/EMPA Test)
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
3-methylcrotonic acid
EC Number:
208-782-7
EC Name:
3-methylcrotonic acid
Cas Number:
541-47-9
Molecular formula:
C5H8O2
IUPAC Name:
3-methylbut-2-enoic acid

Results and discussion

% Degradationopen allclose all
Parameter:
other: COD elimination
Value:
90
Remarks on result:
other: after 5 days
Parameter:
other: COD elimination
Value:
96
Remarks on result:
other: after 10 days

BOD5 / COD results

BOD5 / COD
Parameter:
COD
Value:
1 760 mg O2/g test mat.

Applicant's summary and conclusion

Interpretation of results:
readily biodegradable
Conclusions:
Within 15 days Dimethylacrylic acid was fully degraded.