Iron ores, agglomerates

Short-term toxicity to fish

Administrative data

Endpoint:

short-term toxicity to fish

Type of information:

experimental study

Adequacy of study:

supporting study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: Although the study has been conducted with triiron tetraoxide at a test concentration well exceeding the solubility the test is deemed appropriate as supporting evidence for the non-classification of triiron tetraoxide products

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2000

Report date:

2000

Materials and methods

Principles of method if other than guideline:

Directive 92/69/EEC, C.1, equivalent to the OECD 203

GLP compliance:

yes

Test material

Test material information

Constituent 1

Reference substance name:

1317-277-5

IUPAC Name:

1317-277-5

Constituent 2

Reference substance name:

Triiron tetraoxide

EC Number:

215-277-5

EC Name:

Triiron tetraoxide

Cas Number:

1317-61-9

Constituent 3

Reference substance name:

iron(II,III) oxide

IUPAC Name:

iron(II,III) oxide

Details on test material:

Bayferrox 350 liquid, purity not specified
Composition:
ca. 50 % Iron oxide black (pigment) in aqueous suspension
1 % dispersing agent
0.25 % biocide
0.03 % thickening agent
rest: water

Sampling and analysis

Analytical monitoring:

no

Test solutions

Vehicle:

no

Test organisms

Test organisms (species):

Danio rerio (previous name: Brachydanio rerio)

Study design

Test type:

static

Water media type:

freshwater

Limit test:

no

Total exposure duration:

96 h

Results and discussion

Effect concentrations

Duration:

96 h

Dose descriptor:

LL0

Effect conc.:

> 10 000 mg/L

Nominal / measured:

nominal

Conc. based on:

test mat.

Basis for effect:

mortality (fish)

Any other information on results incl. tables

Sublethal observations / clinical signs:

Considering the heterogeneous composition of the test substance, a Water

Accommodated Fraction (= WAF) of Bayferrox 350 liquid was tested

Applicant's summary and conclusion

Validity criteria fulfilled:

yes

Conclusions:

LL0 and LC50 > 10000 mg/L

Executive summary:

For triiron tetraoxide a 96-hour LL0 (lethal loading) of >= 10000 mg/l (nominal concentration) was observed on Brachydanio rerio. Directive 92/69/EEC, C.1, equivalent to the OECD 203 was the method used.