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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
experimental study
Adequacy of study:
supporting study
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
documentation insufficient for assessment

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1982
Report date:
1982

Materials and methods

Test guideline
Qualifier:
no guideline available
Principles of method if other than guideline:
Pseudomonas putida respiration inhibition test, incubation time 30 min
GLP compliance:
no
Remarks:
Study conducted prior to GLP implementation

Test material

Constituent 1
Chemical structure
Reference substance name:
p-tert-butylaniline
EC Number:
212-215-9
EC Name:
p-tert-butylaniline
Cas Number:
769-92-6
Molecular formula:
C10H15N
IUPAC Name:
4-tert-butylaniline

Test solutions

Details on test solutions:
The test substance was pre-treated in the following way: 1g/L test substance and 1 g/L Emulsifier W/Emulvin W were stirred and afterwards filtrated through a paper filter. From this stock solution dilutions were produced.

Test organisms

Test organisms (species):
Pseudomonas putida

Study design

Water media type:
freshwater
Total exposure duration:
30 min

Results and discussion

Effect concentrations
Duration:
30 min
Dose descriptor:
EC0
Effect conc.:
250 mg/L
Remarks on result:
other: No inhibition of respiration has been observed at 250 mg/L

Applicant's summary and conclusion

Validity criteria fulfilled:
not specified
Conclusions:
No inhibition of respiration has been observed at 250 mg/L (=EC0).