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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
other information
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2011
Report date:
2011

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 201 (Alga, Growth Inhibition Test)
GLP compliance:
yes

Test material

Constituent 1
Reference substance name:
p-Chlorobenzoyl chloride
IUPAC Name:
p-Chlorobenzoyl chloride

Test organisms

Test organisms (species):
Raphidocelis subcapitata (previous names: Pseudokirchneriella subcapitata, Selenastrum capricornutum)

Study design

Test type:
static
Total exposure duration:
72 h

Test conditions

Test temperature:
22 +/- 2 °C
Nominal and measured concentrations:
Culture medium control and nominal concentrations of 5.6, 10, 18, 32 and 56 mg/L.

Results and discussion

Effect concentrationsopen allclose all
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
46 mg/L
Nominal / measured:
nominal
Basis for effect:
biomass
Remarks on result:
other: 36 - 51 mg/L
Duration:
72 h
Dose descriptor:
EC10
Effect conc.:
38 mg/L
Nominal / measured:
nominal
Basis for effect:
growth rate
Remarks on result:
other: 26 - 43 mg/L

Applicant's summary and conclusion

Conclusions:
From this study EC50 for 4-Chlorobenzoyl chloride was determined to be 46 mg/L (72 h) based on yield.