Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Reliability:
2 (reliable with restrictions)

Data source

Reference
Reference Type:
publication
Title:
Environmental fate and effects of ethylene oxide
Author:
CONWAY, R.A., WAGGY, G.T., SPIEGEL, M.H., & BERGLUND, R.L.
Year:
1983
Bibliographic source:
Environ. Sci. Technol., 17: 107-112

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
EU Method C.2 (Acute Toxicity for Daphnia)
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
Ethylene oxide
EC Number:
200-849-9
EC Name:
Ethylene oxide
Cas Number:
75-21-8
Molecular formula:
C2H4O
IUPAC Name:
oxirane

Test organisms

Test organisms (species):
Daphnia magna
Details on test organisms:
Crustacea

Study design

Test type:
static
Water media type:
freshwater
Total exposure duration:
48 h

Test conditions

Test temperature:
17
pH:
7.0
Dissolved oxygen:
minium

Results and discussion

Effect concentrations
Duration:
48 h
Dose descriptor:
LC50
Effect conc.:
212 mg/L
Conc. based on:
test mat.

Applicant's summary and conclusion