Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Acceptable, study which meets basic scientific principles.

Data source

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

Materials and methods

Principles of method if other than guideline:
Oxygen consumption test according to ROBRA
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Tetrachlorophthalic anhydride
EC Number:
204-171-4
EC Name:
Tetrachlorophthalic anhydride
Cas Number:
117-08-8
Molecular formula:
C8Cl4O3
IUPAC Name:
tetrachloro-1,3-dihydro-2-benzofuran-1,3-dione
Details on test material:
- Name of test material (as cited in study report): Tetrachlorophthalic anhydride
- Analytical purity: not stated

Sampling and analysis

Analytical monitoring:
no

Test organisms

Test organisms (species):
Pseudomonas putida

Study design

Test type:
static
Water media type:
freshwater
Limit test:
no
Total exposure duration:
17 h

Test conditions

Test temperature:
25 °C
pH:
3.9 - 7.8
7.0 (100 mg test substance/l neutralised)
Nominal and measured concentrations:
Nominal test concentrations (mg/l):
7.4,
14.8,
29.7,
59.4,
118.8,
277.5,
475,
950,
1000 (neutralised)

Results and discussion

Effect concentrationsopen allclose all
Duration:
17 h
Dose descriptor:
EC10
Effect conc.:
53 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
inhibition of total respiration
Remarks:
respiration rate
Duration:
17 h
Dose descriptor:
EC50
Effect conc.:
276 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
inhibition of total respiration
Remarks:
respiration rate
Duration:
17 h
Dose descriptor:
other: EC90
Effect conc.:
426 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
inhibition of total respiration
Remarks:
respiration rate
Details on results:
Test substance has a very low water solubility, white suspension after 17 h agitation.

Applicant's summary and conclusion