RTECS NUMBER : VV8851000
CHEMICAL NAME : Silicic acid (ortho)
CAS REGISTRY NUMBER : 10193-36-9
LAST UPDATED : 199707
DATA ITEMS CITED : 7
MOLECULAR FORMULA : H4-O4-Si
MOLECULAR WEIGHT : 96.13
SYNONYMS/TRADE NAMES :
* Monosilicic acid
* Orthosilicic acid
* Silica, colloidal
* Silicasol
* Silicic acid (Si(OH)4)
* Silicon tetrahydroxide
* Tetrahydroxysilane
*** HEALTH HAZARD DATA ***
** ACUTE TOXICITY DATA **
TYPE OF TEST : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE : Intravenous
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 100 mg/kg
TOXIC EFFECTS :
Blood - change in clotting factors
REFERENCE :
BJEPA5 British Journal of Experimental Pathology. (Blackwell Scientific
Pub. Ltd., POB 88, Oxford, UK) V.1- 1920- Volume(issue)/page/year:
3,75,1922
TYPE OF TEST : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 40 mg/kg
TOXIC EFFECTS :
Behavioral - somnolence (general depressed activity)
Behavioral - tremor
Behavioral - changes in motor activity (specific assay)
REFERENCE :
BJEPA5 British Journal of Experimental Pathology. (Blackwell Scientific
Pub. Ltd., POB 88, Oxford, UK) V.1- 1920- Volume(issue)/page/year:
3,75,1922
TYPE OF TEST : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE : Intravenous
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 100 mg/kg
TOXIC EFFECTS :
Behavioral - convulsions or effect on seizure threshold
Behavioral - muscle weakness
Blood - change in clotting factors
REFERENCE :
BJEPA5 British Journal of Experimental Pathology. (Blackwell Scientific
Pub. Ltd., POB 88, Oxford, UK) V.1- 1920- Volume(issue)/page/year:
3,75,1922
TYPE OF TEST : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE : Intravenous
SPECIES OBSERVED : Rodent - rabbit
DOSE/DURATION : 100 mg/kg
TOXIC EFFECTS :
Behavioral - excitement
Cardiac - other changes
Lungs, Thorax, or Respiration - other changes
REFERENCE :
BJEPA5 British Journal of Experimental Pathology. (Blackwell Scientific
Pub. Ltd., POB 88, Oxford, UK) V.1- 1920- Volume(issue)/page/year:
3,75,1922
TYPE OF TEST : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - guinea pig
DOSE/DURATION : 120 mg/kg
TOXIC EFFECTS :
Behavioral - tremor
Behavioral - ataxia
Lungs, Thorax, or Respiration - respiratory stimulation
REFERENCE :
BJEPA5 British Journal of Experimental Pathology. (Blackwell Scientific
Pub. Ltd., POB 88, Oxford, UK) V.1- 1920- Volume(issue)/page/year:
3,75,1922
TYPE OF TEST : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE : Intravenous
SPECIES OBSERVED : Rodent - guinea pig
DOSE/DURATION : 100 mg/kg
TOXIC EFFECTS :
Behavioral - somnolence (general depressed activity)
Behavioral - tremor
Behavioral - muscle weakness
REFERENCE :
BJEPA5 British Journal of Experimental Pathology. (Blackwell Scientific
Pub. Ltd., POB 88, Oxford, UK) V.1- 1920- Volume(issue)/page/year:
3,75,1922
*** STATUS IN U.S. ***
EPA TSCA Section 8(b) CHEMICAL INVENTORY
*** END OF RECORD ***
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