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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Study period:
1992
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1992
Report date:
1993

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 301 F (Ready Biodegradability: Manometric Respirometry Test)
GLP compliance:
yes
Remarks:
experimental part and documentation/archiving of test data, other parts without GLP

Test material

Constituent 1
Chemical structure
Reference substance name:
1-chlorooctadecane
EC Number:
222-207-7
EC Name:
1-chlorooctadecane
Cas Number:
3386-33-2
Molecular formula:
C18H37Cl
IUPAC Name:
1-chlorooctadecane

Study design

Oxygen conditions:
aerobic
Duration of test (contact time):
28 d
Initial test substance concentration
Initial conc.:
3 139 mg/L
Based on:
test mat.
Parameter followed for biodegradation estimation
Parameter followed for biodegradation estimation:
O2 consumption
Reference substance
Reference substance:
other: not named

Results and discussion

% Degradationopen allclose all
Parameter:
% degradation (O2 consumption)
Value:
1
Sampling time:
7 d
Remarks on result:
other: oxygen consumption (thCSB)
Parameter:
% degradation (O2 consumption)
Value:
5
Sampling time:
14 d
Remarks on result:
other: oxygen consumption (thCSB)
Parameter:
% degradation (O2 consumption)
Value:
7
Sampling time:
21 d
Remarks on result:
other: oxygen consumption (thCSB)
Parameter:
% degradation (O2 consumption)
Value:
7
Sampling time:
28 d
Remarks on result:
other: oxygen consumption (thCSB)

BOD5 / COD results

Results with reference substance:
degradation > 60 % within 10 d after adaption;

Applicant's summary and conclusion

Interpretation of results:
under test conditions no biodegradation observed
Conclusions:
Under the present test conditions, the substance showed to be non biodegradable. The oxygen consumption (thCSB) stayed below 20 %.
Executive summary:

Under the present test conditions, the substance showed to be non biodegradable. The oxygen consumption (thCSB) stayed below 20 %.