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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicological information

Acute Toxicity: other routes

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Administrative data

Endpoint:
acute toxicity: other routes
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: little details reported, few animals, low maximal dose

Data source

Reference
Reference Type:
publication
Title:
Unnamed
Year:
1989

Materials and methods

Principles of method if other than guideline:
Animals were injected 500 or 3000 µM Fe/kg bw (28 or 168 mg Fe/kg) and observed for 14 days. Control animals were sham-treated. Parameters: Mortality, observation, body weight, food consumption, necropsy
GLP compliance:
not specified
Limit test:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Triiron tetraoxide
EC Number:
215-277-5
EC Name:
Triiron tetraoxide
Cas Number:
1317-61-9
Molecular formula:
Fe3O4
IUPAC Name:
Triiron tetraoxide
Details on test material:
Superparamagnetic iron oxide provided as an aqueous colloid with a concentration of 200 µM Fe/ml (11.2 mg/ml). The volume median diameter of particles was 80 nm (no data on composition or purity).


AMI 25 = superparamagnetic iron oxide provided as an aqueous colloid with a concentration of 200 µM Fe/ml (11.2 mg/ml). The volume median diameter of particles was 80 nm.

Test animals

Species:
rat
Strain:
Sprague-Dawley
Sex:
not specified

Administration / exposure

Route of administration:
intravenous
Vehicle:
not specified
Doses:
500 - 3000 µM Fe/ kg bw (28 - 168 mg Fe/kg bw)
No. of animals per sex per dose:
18
Control animals:
yes

Results and discussion

Effect levels
Dose descriptor:
LD50
Effect level:
> 168 mg/kg bw

Any other information on results incl. tables

Mortality: none
Body weight: no effect
Food consumption: no effect
Observation: no effects
Necropsy: no findings reported

Applicant's summary and conclusion

Conclusions:
No standard test method - no mortality occured, real LD50 probably much higher than maximum applied dose
Executive summary:
Animals were injected 500 or 3000 µM Fe/kg bw (28 or 168 mg Fe/kg) and observed for 14 days. No toxic effects were obseved.