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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicity to aquatic algae and cyanobacteria

Administrative data

Endpoint:
toxicity to aquatic algae and cyanobacteria
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)

Data source

Referenceopen allclose all

Reference Type:
other company data
Title:
Unnamed
Year:
1980
Reference Type:
review article or handbook
Title:
SIDS Initial Assessment Profile "Maleic Anhydride - Maleic Acid"
Author:
SIDS Initial Assessment Meeting
Year:
2004
Bibliographic source:
ICCA - SIAR Publication, Washington, Brussels

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
other: Tümpling Warburg apparatus
Qualifier:
according to guideline
Guideline:
OECD Guideline 201 (Alga, Growth Inhibition Test)
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
Maleic acid
EC Number:
203-742-5
EC Name:
Maleic acid
Cas Number:
110-16-7
Molecular formula:
C4H4O4
IUPAC Name:
but-2-enedioic acid

Results and discussion

Effect concentrationsopen allclose all
Duration:
4 h
Dose descriptor:
EC10
Effect conc.:
125 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
biomass
Duration:
72 h
Dose descriptor:
NOEC
Effect conc.:
>= 130 - < 131 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
biomass

Applicant's summary and conclusion