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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
1977-12-01 to 1978-04-10
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods with acceptable restrictions

Data source

Reference
Reference Type:
publication
Title:
Unnamed
Year:
1992
Report date:
1992

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: Japanese pre-OECD harmonization guideline
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
Diethyl sulphate
EC Number:
200-589-6
EC Name:
Diethyl sulphate
Cas Number:
64-67-5
Molecular formula:
C4H10O4S
IUPAC Name:
diethyl sulfate

Study design

Oxygen conditions:
aerobic
Inoculum or test system:
activated sludge (adaptation not specified)

Results and discussion

% Degradation
Key result
Parameter:
% degradation (TOC removal)
Value:
89
Sampling time:
28 d

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Interpretation of results:
readily biodegradable
Conclusions:
The substance was rapidly degraded (certainly due to hydrolysis) and the hydrolysis product (ethanol) was readily biodegradable.