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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Endpoint:
biodegradation in water: screening tests
Adequacy of study:
disregarded due to major methodological deficiencies
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: 4c original reference not available

Data source

Reference
Reference Type:
other company data
Title:
Unnamed
Year:
1977
Report date:
1977

Materials and methods

Principles of method if other than guideline:
Method: other: Standversuch

Test material

Constituent 1
Chemical structure
Reference substance name:
Hydrogen sulphide
EC Number:
231-977-3
EC Name:
Hydrogen sulphide
Cas Number:
7783-06-4
Molecular formula:
H2S
IUPAC Name:
hydrogen sulfide

Study design

Inoculum or test system:
activated sludge (adaptation not specified)
Initial test substance concentration
Initial conc.:
100 mg/L
Based on:
not specified

Results and discussion

% Degradation
Value:
76
Sampling time:
2 d

Applicant's summary and conclusion

Interpretation of results:
readily biodegradable