silicic acid
Names
[ CAS No. ]:
1343-98-2
[ Name ]:
silicic acid
[Synonym ]:
MFCD00054122
Silicic acid
EINECS 215-683-2
Chemical & Physical Properties
[ Density]:
0.230 g/cm3
[ Molecular Formula ]:
H2O3Si
[ Molecular Weight ]:
78.09960
[ Exact Mass ]:
77.97730
[ PSA ]:
57.53000
[ Stability ]:
Stable.
[ Water Solubility ]:
Soluble in water
MSDS
Toxicological Information
CHEMICAL IDENTIFICATION
- RTECS NUMBER :
- VV8853000
- CHEMICAL NAME :
- Silicic acid (polyortho)
- CAS REGISTRY NUMBER :
- 1343-98-2
- LAST UPDATED :
- 199710
HEALTH HAZARD DATA
ACUTE TOXICITY DATA
- TYPE OF TEST :
- TCLo - Lowest published toxic concentration
- ROUTE OF EXPOSURE :
- Inhalation
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 680 mg/m3/6H/2W-I
- TOXIC EFFECTS :
- Lungs, Thorax, or Respiration - fibrosis, focal (pneumoconiosis) Lungs, Thorax, or Respiration - changes in lung weight Related to Chronic Data - death
- REFERENCE :
- FCTOD7 Food and Chemical Toxicology. (Pergamon Press Inc., Maxwell House, Fairview Park, Elmsford, NY 10523) V.20- 1982- Volume(issue)/page/year: 29,341,1991
- TYPE OF TEST :
- TCLo - Lowest published toxic concentration
- ROUTE OF EXPOSURE :
- Inhalation
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 35 mg/m3/6H/13W-I
- TOXIC EFFECTS :
- Lungs, Thorax, or Respiration - other changes Lungs, Thorax, or Respiration - changes in lung weight Nutritional and Gross Metabolic - weight loss or decreased weight gain
- REFERENCE :
- FCTOD7 Food and Chemical Toxicology. (Pergamon Press Inc., Maxwell House, Fairview Park, Elmsford, NY 10523) V.20- 1982- Volume(issue)/page/year: 29,341,1991 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 80288 No. of Facilities: 478 (estimated) No. of Industries: 20 No. of Occupations: 16 No. of Employees: 3828 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 80288 No. of Facilities: 6758 (estimated) No. of Industries: 58 No. of Occupations: 70 No. of Employees: 111636 (estimated) No. of Female Employees: 28296 (estimated)
Safety Information
[ Hazard Codes ]:
Xi: Irritant;
[ Risk Phrases ]:
R36/37
[ Safety Phrases ]:
S22-S26-S36-S24/25
[ WGK Germany ]:
3
[ RTECS ]:
VV8853000
[ HS Code ]:
2842909090
Customs
[ HS Code ]: 2842909090