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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
migrated information: read-across based on grouping of substances (category approach)
Adequacy of study:
supporting study
Study period:
no data
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: OECD guideline was not followed, methods were not available at the time of the study. The study was performed pre-GLP.

Data source

Reference
Reference Type:
publication
Title:
Absorption and toxicity of sodium and potassium thiocyanates
Author:
Anderson, R.C., Chen K.K.
Year:
1940
Bibliographic source:
J Amer Pharmac Assoc 29 (1940) 152-161

Materials and methods

Test guideline
Qualifier:
no guideline available
GLP compliance:
no
Limit test:
no

Test material

Constituent 1
Reference substance name:
Sodium thiocyanate
EC Number:
208-754-4
EC Name:
Sodium thiocyanate
Cas Number:
540-72-7
IUPAC Name:
sodium thiocyanate
Details on test material:
Sodium thiocyanate.
Recrystallized from water, and the moisture content determined. The water of crystallization of the sodium constituted 3.525 per cent. All the doses were calculated according to the anhydrous forms.

Test animals

Species:
mouse
Strain:
not specified
Sex:
not specified

Administration / exposure

Route of administration:
intravenous
Vehicle:
not specified
Doses:
453, 482, 521, 579 mg/kg bw
No. of animals per sex per dose:
5 or 6 or 7, sex undefined
Control animals:
no

Results and discussion

Effect levels
Sex:
not specified
Dose descriptor:
LD50
Effect level:
483.5 mg/kg bw
Remarks on result:
other: standard deviation 9.3
Mortality:
Dose: 453, 482, 521, 579 mg/kg bw
Deaths: 0/6, 5/7, 4/5, 5/5

Any other information on results incl. tables

potassium thiocyanate by intravenous injection is more than five times as toxic as sodium thiocyanate to mice when their median lethal doses (L. D.m) are compared. Clonic convdsions, gasping and deaths occurred within 2 to 3 minutes with the potassium salt, while the same were delayed with the sdoium salt for 1 -3 hours. The highly toxic action of the potassium ions upon the heart undoubtly accounted for the differnce. In case of oral doses the toxicity between the two compounds differs slightly.

Applicant's summary and conclusion

Conclusions:
The LD50 in mice after i.v. administration is 483.5 ± 9.3 mg/kg bw.
Executive summary:

An acute toxicity study was performed pre-GLP and pre-guideline. The LD50 in mice after i.v. admniistration is 483.5 ± 9.3 mg/kg bw.