CAS 1343-98-2|silicic acid

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)