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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Study period:
no data
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Meets generally accepted scientific standards with acceptable restrictions.

Data source

Reference
Reference Type:
publication
Title:
Preliminary studies of the caries inhibiting potential and acute toxicity of sodium monofluorophosphate
Author:
Shourie KL, Hein JW & Hodge HC
Year:
1950
Bibliographic source:
J. D. Res. 29():529

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: no data
Deviations:
not specified
Principles of method if other than guideline:
One hundred and five albino rats were given graded doses from 74 mg/ kg to 465 mg/ kg of sodium monoflurophosphate as a 5% aqueous solution. The route of administration was intraperitoneal injection, the number of animals dead in 24 hours was used to calculate the LD50.
GLP compliance:
not specified
Limit test:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
Disodium fluorophosphate
EC Number:
233-433-0
EC Name:
Disodium fluorophosphate
Cas Number:
10163-15-2
Molecular formula:
FH2O3P.2Na
IUPAC Name:
disodium fluorophosphate
Details on test material:
- Name of test material (as cited in study report): sodium monofluorophosphate

Test animals

Species:
rat
Strain:
not specified
Sex:
not specified
Details on test animals or test system and environmental conditions:
TEST ANIMALS

- Weight at study initiation: 200-300 grams

Administration / exposure

Route of administration:
intraperitoneal
Vehicle:
water
Details on exposure:
no data
Doses:
Graded doses from 74 mg/ kg to 465 mg/ kg of sodium monoflurophosphate as a 5% aqueous solution.
No. of animals per sex per dose:
105 rats were divided into 13 groups of five to ten animals.
Control animals:
not specified
Details on study design:
The number of animals dead within a 24 h observation period were used to calculate the LD50 of the compound
Statistics:
From the number of animals dead in 24 h the LD50 was calculated by use of the Winthrop logarithmic-probit graph paper.

Results and discussion

Effect levels
Sex:
not specified
Dose descriptor:
LD50
Effect level:
220 mg/kg bw
Remarks on result:
other: ± 32 mg/ kg standard error
Mortality:
On the basis of Fluoride content alone the LD50 is 29 mg/ kg
Clinical signs:
No data.
Body weight:
No data.
Gross pathology:
No data.
Other findings:
No data.

Any other information on results incl. tables

No data.

Applicant's summary and conclusion

Conclusions:
The LD50 of sodium monofluorophosphate was 220 ± 32 mg/ kg bodyweight in rats weighing 200 to 300 grams.