Registration Dossier

Diss Factsheets

Ecotoxicological information

Toxicity to microorganisms

Currently viewing:

Administrative data

Endpoint:
activated sludge respiration inhibition testing
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data

Data source

Reference
Reference Type:
review article or handbook
Title:
Fettalkoholsulfate - Die ΓΆkologische Absicherung einer wichtigen Gruppe von Waschmitteltensiden
Author:
Steber J, Gode P, Guhl W
Year:
1988
Bibliographic source:
Fett/Lipid, 90: 32–38. doi:10.1002/lipi.19880900106

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: see remark
Version / remarks:
K. H. Robru, Bewertung toxischer Wasserinhaltsstoffe aus der Inhibitorwirkung auf die Substratoxidation von Ps. Stamrn Berlin mit Hilfe polarograhischer Sauerstoffrnessungen, gwf-Wasser/ Abwasser 117, 80 1976.
Deviations:
not specified
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
Sodium hexadecyl sulphate
EC Number:
214-292-4
EC Name:
Sodium hexadecyl sulphate
Cas Number:
1120-01-0
Molecular formula:
C16H34O4S.Na
IUPAC Name:
sodium hexadecyl sulfate
Constituent 2
Chemical structure
Reference substance name:
Sodium octadecyl sulphate
EC Number:
214-295-0
EC Name:
Sodium octadecyl sulphate
Cas Number:
1120-04-3
Molecular formula:
C18H38O4S.Na
IUPAC Name:
sodium octadecyl sulfate
Details on test material:
Name of the test substance: Talgfettalkoholsulfat
C16/18

Test organisms

Test organisms (species):
Pseudomonas putida

Study design

Test type:
static
Water media type:
freshwater
Total exposure duration:
30 min

Results and discussion

Effect concentrations
Key result
Duration:
30 min
Dose descriptor:
NOEC
Effect conc.:
35 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
inhibition of total respiration

Applicant's summary and conclusion

Conclusions:
AS C16/18 Ps. putida respiration 30-min NOEC: 35 mg/L