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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Short-term toxicity to aquatic invertebrates

Administrative data

Endpoint:
short-term toxicity to aquatic invertebrates
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1980
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Study well documented, meets generally accepted scientific principles, acceptable for assessment.

Data source

Reference
Reference Type:
publication
Title:
Acute toxicity of priority pollutants to water flea Daphnia Magna
Author:
LeBlanc., Gerald A.
Year:
1980
Bibliographic source:
Bull Environm Contam. Toxicol.1980. 24, 684-691

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: EPA-660/3-75-009 (Methods for Acute Toxicity Tests with Fish, Macroinvertebrates, and Amphibians)
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
Diethyl phthalate
EC Number:
201-550-6
EC Name:
Diethyl phthalate
Cas Number:
84-66-2
Molecular formula:
C12H14O4
IUPAC Name:
diethyl phthalate

Sampling and analysis

Analytical monitoring:
not specified

Test solutions

Vehicle:
not specified

Test organisms

Test organisms (species):
Daphnia magna
Details on test organisms:
Daphna magna < 24 h old.

Study design

Test type:
not specified
Water media type:
freshwater
Total exposure duration:
48 h

Test conditions

Hardness:
173 ± 13 mg/L
Test temperature:
22±1 °C
pH:
8.0 ± 0.2
Dissolved oxygen:
6.5 - 9.1 mg/L

Results and discussion

Effect concentrationsopen allclose all
Duration:
24 h
Dose descriptor:
LC50
Effect conc.:
52 mg/L
Conc. based on:
test mat.
Basis for effect:
mortality
Remarks on result:
other: 36-74 mg/L
Duration:
48 h
Dose descriptor:
LC50
Effect conc.:
52 mg/L
Conc. based on:
test mat.
Basis for effect:
mortality
Remarks on result:
other: 36-74 mg/L

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
The LC50 of 52 mg/L shows that diethyl phthalate is not classified as toxic to aquatic invertebrates.