Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
toxicity to microorganisms, other
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Justification for type of information:
Limited detail of methods; citation is from research paper not claiming to follow any specific regulatory method
This study looked at bacterial and fungi, species not defined

Data source

Reference
Reference Type:
review article or handbook
Title:
Unnamed
Year:
1999

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
Examination of soil bacteria and fungi
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
Tetrabromophthalic acid
Cas Number:
13810-83-8
Molecular formula:
C8H2Br4O4
IUPAC Name:
Tetrabromophthalic acid
Specific details on test material used for the study:
The anhydride was examined, but in view of rapid hydrolysis, the epxosure to the test system was effectively to the acid.
This is considered a valid substitute for read-across as the potassium salt will quickly dissociate; when diluted in solution, both the potassium salt and acid will combine with Calcium and Magnesium ions in natural water and form poorly soluble salts.

Sampling and analysis

Analytical monitoring:
not specified

Test solutions

Vehicle:
not specified

Test organisms

Test organisms (species):
aerobic microorganisms

Study design

Test type:
static
Water media type:
other: Soil
Limit test:
no
Remarks on exposure duration:
The exposure duration is not specified, but was part of a longer-term mesocosm test

Test conditions

Hardness:
Performed in natural soil/sediment

Results and discussion

Effect concentrations
Dose descriptor:
EC0
Effect conc.:
> 10 other: mg/kg
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
growth inhibition
Remarks on result:
other: Full methods not published

Applicant's summary and conclusion

Conclusions:
The result is consistent with other sources of information that show low level of biological effect on organisms.
This study looked at bacterial and fungi, species not defined