Barium sulfate

Modify Date: 2022-01-11 11:09:36

Barium sulfate structure
Common Name Barium sulfate
CAS Number 7727-43-7 Molecular Weight 233.390
Density 4.5 Boiling Point 330ºC at 760 mmHg
Molecular Formula BaO4S Melting Point 1580ºC
MSDS Chinese USA Flash Point N/A

 Names

Name Barium sulfate
Synonym More Synonyms

 Chemical & Physical Properties

Density 4.5
Boiling Point 330ºC at 760 mmHg
Melting Point 1580ºC
Molecular Formula BaO4S
Molecular Weight 233.390
Exact Mass 233.856964
PSA 88.64000
Stability Stable.
Water Solubility 0.0022 g/L (50 ºC)

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
CR0600000
CHEMICAL NAME :
Barium sulfate
CAS REGISTRY NUMBER :
7727-43-7
LAST UPDATED :
199712
DATA ITEMS CITED :
24
MOLECULAR FORMULA :
O4-S.Ba
MOLECULAR WEIGHT :
233.40
WISWESSER LINE NOTATION :
.BA..S-O4

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD - Lethal dose
ROUTE OF EXPOSURE :
Intratracheal
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
>600 uL/kg
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - other changes
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Intrapleural
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
200 mg/kg
TOXIC EFFECTS :
Tumorigenic - equivocal tumorigenic agent by RTECS criteria Lungs, Thorax, or Respiration - tumors

MUTATION DATA

TEST SYSTEM :
Rodent - mouse
REFERENCE :
GWZHEW Gongye Weisheng Yu Zhiyebing. Industrial Health and Occupational Diseases. (China International Book Trading Corp., POB 2820, Beijing, Peop. Rep. China) V.1- 1973- Volume(issue)/page/year: 12,77,1986 *** REVIEWS *** ACGIH TLV-TWA 10 mg/m3, Inhalable particulate DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 TOXICOLOGY REVIEW 31BYAP "Experimental Lung Cancer: Carcinogenesis and Bioassays, International Symposium, 1974," Karbe, E., and J.F. Park, eds., Springer-Verlag New York, Inc., 1974 Volume(issue)/page/year: -,94,1974 *** U.S. STANDARDS AND REGULATIONS *** MSHA STANDARD-air:TWA 0.5 mg(Ba)/m3 DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: 3,21,1971 OSHA PEL (Gen Indu):8H TWA 15 mg/m3, total dust CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1910.1000,1994 OSHA PEL (Gen Indu):8H TWA 5 mg/m3, respirable fraction CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1910.1000,1994 OSHA PEL (Construc):8H TWA 15 mg/m3, total dust CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1926.55,1994 OSHA PEL (Construc):8H TWA 5 mg/m3, respirable fraction CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1926.55,1994 OSHA PEL (Shipyard):8H TWA 15 mg/m3, total dust CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1915.1000,1993 OSHA PEL (Shipyard):8H TWA 5 mg/m3, respirable fraction CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1915.1000,1993 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-AUSTRALIA:TWA 10 mg/m3 JAN 1993 OEL-BELGIUM:TWA 10 mg/m3 (resp. dust) JAN 1993 OEL-UNITED KINGDOM:TWA 2 mg/m3 JAN 1993 OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO BARIUM SULFATE, respirable fraction-air:10H TWA 5 mg/m3 REFERENCE : NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of Health, Education, and Welfare, Reports and Memoranda. Volume(issue)/page/year: DHHS #92-100,1992 NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO BARIUM SULFATE, total dust-air:10H TWA 10 mg/m3 REFERENCE : NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of Health, Education, and Welfare, Reports and Memoranda. Volume(issue)/page/year: DHHS #92-100,1992 NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 80611 No. of Facilities: 18620 (estimated) No. of Industries: 173 No. of Occupations: 104 No. of Employees: 188781 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 80611 No. of Facilities: 25446 (estimated) No. of Industries: 200 No. of Occupations: 133 No. of Employees: 363169 (estimated) No. of Female Employees: 96327 (estimated)

 Safety Information

Personal Protective Equipment Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
Hazard Codes Xn
Risk Phrases R20/21/22
Safety Phrases 22-24/25-36-26
RIDADR NONH for all modes of transport
RTECS CR0600000
HS Code 2833270000

 Customs

HS Code 2833270000

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 Synonyms

Barium salt of sulfuric acid
EINECS 231-784-4
Precipitated Barium Sulfate
Barite
Barium sulphate
MFCD00003455
Sulfuric acid, barium salt (1:1)
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7727-43-7