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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Endpoint:
toxicity to aquatic algae and cyanobacteria
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Guideline study with slight modifications according to Van Leeuwen et al. (1985). Limited documentation.

Data source

Referenceopen allclose all

Reference Type:
publication
Title:
Unnamed
Year:
1982
Report date:
1982
Reference Type:
secondary source
Title:
European Union Risk Assessment Report, Nitrobenzene, CAS No: 98-95-3
Author:
European Chemicals Bureau
Year:
2007
Bibliographic source:
3rd Priority List, Volume: 77
Report date:
2007

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 201 (Alga, Growth Inhibition Test)
GLP compliance:
no
Remarks:
test prior to 1 June 2008

Test material

Constituent 1
Chemical structure
Reference substance name:
Nitrobenzene
EC Number:
202-716-0
EC Name:
Nitrobenzene
Cas Number:
98-95-3
Molecular formula:
C6H5NO2
IUPAC Name:
nitrobenzene
Details on test material:
- Analytical purity: No data about the degree of purity of the test substance were provided.
DMSO (purity 99%) was used as vehicle for the preparation of the stock solution.

Sampling and analysis

Analytical monitoring:
no

Test solutions

Vehicle:
yes

Test organisms

Test organisms (species):
Chlorella pyrenoidosa
Details on test organisms:
Growing Chlorella pyrenoidosa

Study design

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

Results and discussion

Effect concentrations
Duration:
96 h
Dose descriptor:
EC50
Effect conc.:
18 mg/L
Nominal / measured:
not specified
Conc. based on:
test mat.
Basis for effect:
growth rate

Applicant's summary and conclusion

Validity criteria fulfilled:
yes