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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

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Administrative data

Endpoint:
short-term toxicity to aquatic invertebrates
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1991
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
publication
Title:
BUA-Stoffbericht 81 - Ameisensäure, Formiate
Author:
n.a.
Year:
1992
Bibliographic source:
Beratergremium für Altstoffe (BUA) der Gesellschaft Deutscher Chemiker, S.Hirzel Wissenschaftliche Verlagsgesellschaft

Materials and methods

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

Test material

Constituent 1
Chemical structure
Reference substance name:
Formic acid
EC Number:
200-579-1
EC Name:
Formic acid
Cas Number:
64-18-6
Molecular formula:
CH2O2
IUPAC Name:
formic acid
Constituent 2
Chemical structure
Reference substance name:
Water
EC Number:
231-791-2
EC Name:
Water
Cas Number:
7732-18-5
Molecular formula:
H2O
IUPAC Name:
Water
Test material form:
liquid

Sampling and analysis

Analytical monitoring:
not specified

Test solutions

Vehicle:
no

Test organisms

Test organisms (species):
Daphnia magna

Study design

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

Test conditions

Reference substance (positive control):
not specified

Results and discussion

Effect concentrationsopen allclose all
Duration:
24 h
Dose descriptor:
LC0
Effect conc.:
ca. 25 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality
Duration:
24 h
Dose descriptor:
LC50
Effect conc.:
ca. 34.2 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality
Key result
Duration:
48 h
Dose descriptor:
EC0
Effect conc.:
ca. 25 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality
Key result
Duration:
48 h
Dose descriptor:
EC50
Effect conc.:
ca. 34.2 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
The EC50 of formic acid in Daphnia after 48 h is 34.2 mg/l.
Executive summary:

The EC50 of formic acid in Daphnia after 48 h is 34.2 mg/l. This value is taken from literature (BUA Stoffberticht No. 81).