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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

Endpoint:
biodegradation in water: ready biodegradability
Type of information:
experimental study
Adequacy of study:
other information
Study period:
February, 22- March, 22, 1989
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Guideline study, basic data given

Data source

Referenceopen allclose all

Reference Type:
study report
Title:
Unnamed
Year:
1989
Reference Type:
secondary source
Title:
3,4-dichlorobut-1-ene
Author:
ECB
Year:
2000
Bibliographic source:
ECB IUCLID dataset
Reference Type:
secondary source
Title:
3,4-Dichlorobut-1-ene - CAS No: 760-23-6
Author:
OECD SIDS
Year:
2003
Bibliographic source:
SIDS Initial Assessment Report for 11th SIAM, UNEP Publications

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
other: EG Guideline 79/831 EWG, part 5
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 301 D (Ready Biodegradability: Closed Bottle Test)
GLP compliance:
not specified

Test material

Constituent 1
Reference substance name:
720-23-6
IUPAC Name:
720-23-6
Constituent 2
Chemical structure
Reference substance name:
3,4-dichlorobut-1-ene
EC Number:
212-079-0
EC Name:
3,4-dichlorobut-1-ene
Cas Number:
760-23-6
Molecular formula:
C4H6Cl2
IUPAC Name:
3,4-dichlorobut-1-ene
Details on test material:
- Name of test material (as cited in study report): 3,4-Dichlorbuten
- Analytical purity: not stated in original report ( 99.6% reported in ECD IUCLID4 dataset)

Study design

Oxygen conditions:
aerobic
Inoculum or test system:
sewage, predominantly domestic (adaptation not specified)
Details on inoculum:
- Source of inoculum/activated sludge: laboratory treatment plant
- Laboratory culture: yes
Duration of test (contact time):
28 d
Parameter followed for biodegradation estimation
Parameter followed for biodegradation estimation:
O2 consumption
Reference substance
Reference substance:
aniline

Results and discussion

% Degradationopen allclose all
Parameter:
% degradation (O2 consumption)
Value:
0
Sampling time:
5 d
Parameter:
% degradation (O2 consumption)
Value:
0
Sampling time:
15 d
Parameter:
% degradation (O2 consumption)
Value:
0
Sampling time:
28 d

BOD5 / COD results

Results with reference substance:
100% after 28 d

Applicant's summary and conclusion

Interpretation of results:
under test conditions no biodegradation observed