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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
acute toxicity: other routes
Adequacy of study:
other information
Reliability:
4 (not assignable)

Data source

Reference
Reference Type:
review article or handbook
Title:
Pharmacology and toxicology of the rare earth elements
Author:
Haley T.J.
Year:
1965
Bibliographic source:
Journal of pharmaceutical sciences

Materials and methods

Principles of method if other than guideline:
The acute lethal doses of the cerium compounds, as published in diverse scientific publications, have been reviewed.

Test material

Constituent 1
Chemical structure
Reference substance name:
Cerium
EC Number:
231-154-9
EC Name:
Cerium
Cas Number:
7440-45-1
Molecular formula:
Ce
IUPAC Name:
cerium(3+)
Details on test material:
Cerium compounds: cerium chloride, cerium citrate chloride, cerium nitrate

Test animals

Species:
other: frog, mouse, rat, guinea pig

Administration / exposure

Route of administration:
other: subcutaneous, intraperitoneal, intravenous, oral

Results and discussion

Any other information on results incl. tables

This review collects the LD50 values of cerium compounds as applied to diversed animal species:

Chemical

Species, sex

LD50 (mg/Kg)

Administration

Reference

Cerium chloride

Frog

About 300

Subcutaneous

Hara S, Arch. Expil. Pathol Pharmakol 100, 230 (1923)

 

Mouse

5.000 – 10.000

subcutaneous

Ibid, 100, 217 (1923)

 

Mouse

296 – 420

intraperitoneal

Graca JG, Garst EL, Lowry W, A.M.A.Health 15, 9 (1957)

 

Rat

2.000 – 4.000

subcutaneous

Ibid, 100, 217 (1923)

 

Rat

50– 60

intravenous

Maxwll LC, Bischoff F, J. Pharmacol. Expil Therap. 43, 61 (1931)

 

Guinea pig

40 – 77

Intraperitoneal

Graca JG, Garst EL, Lowry W, A.M.A.Health 15, 9 (1957)

Cerium citrate chloride

Rat

128 – 167

Intraperitoneal

Graca JG, Garst EL, Lowry W, A.M.A.Health 15, 9 (1957)

 

Guinea pig

73 – 146

Intraperitoneal

Graca JG, Garst EL, Lowry W, A.M.A.Health 15, 9 (1957)

Cerium nitrat

Mouse, female

435 – 508

Intraperitoneal

Bruce DW, Hietbrink BE, BuBois KP, Toxicol. Appl. Pharmacol, 5, 750 (1963)

 

Rat, female

238 – 354

Intraperitoneal

Bruce DW, Hietbrink BE, BuBois KP, Toxicol. Appl. Pharmacol, 5, 750 (1963)

 

Rat, female

3.684 – 4.788

oral

Bruce DW, Hietbrink BE, BuBois KP, Toxicol. Appl. Pharmacol, 5, 750 (1963)

 

Rat, female

3,4 - 5,6

intravenous

Bruce DW, Hietbrink BE, BuBois KP, Toxicol. Appl. Pharmacol, 5, 750 (1963)

 

Rat, male

32,8 – 74,4

intravenous

Bruce DW, Hietbrink BE, BuBois KP, Toxicol. Appl. Pharmacol, 5, 750 (1963)

Applicant's summary and conclusion