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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Ecotoxicological information

Long-term toxicity to aquatic invertebrates

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Administrative data

Endpoint:
long-term toxicity to aquatic invertebrates
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Only secondary literature was available!

Data source

Reference
Reference Type:
publication
Title:
Maleic Anhydride and Maleic Acid
Author:
UNEP
Year:
2005
Bibliographic source:
Published OECD SIDS initial assessments of HPV chemicals (2005)

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: Umweltbundesamt, Berlin (February 1984)
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Maleic anhydride
EC Number:
203-571-6
EC Name:
Maleic anhydride
Cas Number:
108-31-6
Molecular formula:
C4H2O3
IUPAC Name:
furan-2,5-dione
Details on test material:
Maleic anhydride hydrolyses under test conditions. As a result it is believed that maleic acid and its sodium salt were the test materials investigated in this study.

Sampling and analysis

Analytical monitoring:
not specified
Details on sampling:
no data

Test solutions

Vehicle:
no
Details on test solutions:
no data

Test organisms

Test organisms (species):
Daphnia magna
Details on test organisms:
no data

Study design

Test type:
static
Water media type:
freshwater
Limit test:
no
Total exposure duration:
21 d
Post exposure observation period:
no data

Test conditions

Hardness:
no data
Test temperature:
no data
pH:
no data
Dissolved oxygen:
no data
Salinity:
no data
Nominal and measured concentrations:
no data
Details on test conditions:
no data
Reference substance (positive control):
not required

Results and discussion

Effect concentrationsopen allclose all
Duration:
21 d
Dose descriptor:
EC50
Effect conc.:
77 mg/L
Nominal / measured:
not specified
Conc. based on:
test mat.
Basis for effect:
reproduction
Duration:
21 d
Dose descriptor:
NOEC
Effect conc.:
10 mg/L
Nominal / measured:
not specified
Conc. based on:
test mat.
Basis for effect:
reproduction
Details on results:
no data
Reported statistics and error estimates:
no data

Applicant's summary and conclusion

Validity criteria fulfilled:
no
Remarks:
only secondary literature