Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
short-term toxicity to fish
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
1980-11-08
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Study was not performed according to GLP. Therefore the study is reliable with restrictions.
Cross-reference
Reason / purpose for cross-reference:
reference to same study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1980
Report date:
1980

Materials and methods

Test guideline
Qualifier:
no guideline available
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Acetaldehyde
EC Number:
200-836-8
EC Name:
Acetaldehyde
Cas Number:
75-07-0
Molecular formula:
C2H4O
IUPAC Name:
acetaldehyde
Details on test material:
Purity: 99%
Source: Aldrich Chemical

Sampling and analysis

Analytical monitoring:
yes

Test solutions

Vehicle:
not specified

Test organisms

Test organisms (species):
Pimephales promelas

Study design

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

Results and discussion

Effect concentrationsopen allclose all
Duration:
96 h
Dose descriptor:
LC50
Effect conc.:
30.8 mg/L
Nominal / measured:
meas. (initial)
Conc. based on:
test mat.
Basis for effect:
mortality (fish)
Remarks on result:
other: Conf. Lim: 28.0 - 34.0
Duration:
96 h
Dose descriptor:
EC50
Effect conc.:
30.8 mg/L
Nominal / measured:
meas. (initial)
Conc. based on:
test mat.
Basis for effect:
other: Effect
Remarks on result:
other: Conf. Lim: 28.0 - 34.0

Any other information on results incl. tables

Sublethal observations / clinical signs:

Stressed immediately upon introduction to high concentration. Affected fish lost equilibrium prior to death.

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
The LC50 after 96 hours exposure in Fathead Minnows was 30.8 mg/L.
Executive summary:

The actue toxicity study in fish was performed in year 1980 prior to GLP implementation.

The LC50 after 96 hours exposure in Fathead Minnows was 30.8 mg/L.