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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
activated sludge respiration inhibition testing
Type of information:
read-across based on grouping of substances (category approach)
Adequacy of study:
key study
Justification for type of information:
It is well established that saturated perfluorocarbons form a class of chemicals with very similar properties.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1989
Report date:
1989

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 209 (Activated Sludge, Respiration Inhibition Test
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
Docosafluorododecahydrofluorene
EC Number:
405-610-4
EC Name:
Docosafluorododecahydrofluorene
Cas Number:
307-08-4
Molecular formula:
C13F22
IUPAC Name:
1,1,2,2,3,3,4,4,4A,4B,5,5,6,6,7,7,8,8,8A,9,9,9A-Docosafluorododecahydro-1H-fluorene
Test material form:
liquid

Test organisms

Test organisms (species):
activated sludge of a predominantly domestic sewage

Study design

Test type:
static
Water media type:
freshwater
Total exposure duration:
3 h

Test conditions

Hardness:
350 mg/l as CaCO3
pH:
6.0 - 8.5
Reference substance (positive control):
yes
Remarks:
3,5-Dichlorophenol

Results and discussion

Effect concentrations
Key result
Duration:
3 h
Dose descriptor:
EC50
Effect conc.:
> 100 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
inhibition of total respiration
Results with reference substance (positive control):
Reference substance found to have EC(30) of 26 mg/l after 30 minutes, and 15 mg/l after 3 hours.

Applicant's summary and conclusion

Conclusions:
No effect on microorganisms
Executive summary:

No effect on microorganisms