barium
Names
[ CAS No. ]:
7440-39-3
[ Name ]:
barium
[Synonym ]:
EINECS 231-149-1
Barium
MFCD00134031
barium powder
baryum
barium strontium-containing oxide
bario
UNII-24GP945V5T
Chemical & Physical Properties
[ Density]:
3.6 g/mL at 25 °C(lit.)
[ Boiling Point ]:
1640 °C(lit.)
[ Melting Point ]:
725 °C(lit.)
[ Molecular Formula ]:
Ba
[ Molecular Weight ]:
137.32700
[ Exact Mass ]:
137.90500
[ Appearance of Characters ]:
rod
[ Stability ]:
Stability Reacts vigorously or violently with acids, water, tetrachloromethane, small halogenated hydrocarbons. Should be stored under an inert material such as petroleum ether to exclude air. Flammable.
MSDS
Toxicological Information
CHEMICAL IDENTIFICATION
- RTECS NUMBER :
- CQ8370000
- CHEMICAL NAME :
- Barium
- CAS REGISTRY NUMBER :
- 7440-39-3
- LAST UPDATED :
- 199712
- DATA ITEMS CITED :
- 32
- MOLECULAR FORMULA :
- Ba
- MOLECULAR WEIGHT :
- 137.34
- WISWESSER LINE NOTATION :
- .BA
HEALTH HAZARD DATA
ACUTE TOXICITY DATA
- TYPE OF TEST :
- TDLo - Lowest published toxic dose
- ROUTE OF EXPOSURE :
- Oral
- SPECIES OBSERVED :
- Rodent - rat
- DOSE/DURATION :
- 26622 mg/kg/69W-C
- REFERENCE :
- JTEHD6 Journal of Toxicology and Environmental Health. (Hemisphere Pub., 1025 Vermont Ave., NW, Washington, DC 20005) V.1- 1975/76- Volume(issue)/page/year: 28,373,1989 *** REVIEWS *** ACGIH TLV-Not classifiable as a human carcinogen 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 ACGIH TLV-TWA 0.5 mg/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: TLV/BEI,1997 *** U.S. STANDARDS AND REGULATIONS *** MSHA STANDARD-air:TWA 0.5 mg/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 0.5 mg(Ba)/m3 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 0.5 mg(Ba)/m3 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 0.5 mg(Ba)/m3 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 (Fed Cont):8H TWA 0.5 mg(Ba)/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 41,50-204.50,1994 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-AUSTRALIA:TWA 0.5 mg/m3 JAN 1993 OEL-AUSTRIA:TWA 0.5 mg/m3 JAN 1993 OEL-BELGIUM:TWA 0.5 mg/m3 JAN 1993 OEL-DENMARK:TWA 0.5 mg/m3 JAN 1993 OEL-FINLAND:TWA 0.5 mg/m3 JAN 1993 OEL-GERMANY:TWA 0.5 mg/m3 (total dust) JAN 1993 OEL-HUNGARY:STEL 0.5 mg/m3 JAN 1993 OEL-THE NETHERLANDS:TWA 0.5 mg/m3 JAN 1993 OEL-THE PHILIPPINES:TWA 0.5 mg/m3 JAN 1993 OEL-POLAND:TWA 0.5 mg/m3;STEL 1.5 mg/m3 JAN 1993 OEL-SWITZERLAND:TWA 0.5 mg/m3;STEL 1 mg/m3 JAN 1993 OEL-TURKEY:TWA 0.5 mg/m3 JAN 1993 OEL-UNITED KINGDOM:TWA 0.5 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, soluble compounds-air:10H TWA 0.5 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 OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 08625 No. of Facilities: 657 (estimated) No. of Industries: 13 No. of Occupations: 31 No. of Employees: 6101 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 08625 No. of Facilities: 901 (estimated) No. of Industries: 15 No. of Occupations: 64 No. of Employees: 10394 (estimated) No. of Female Employees: 3598 (estimated)
Safety Information
[ Symbol ]:
GHS02, GHS07
[ Signal Word ]:
Danger
[ Hazard Statements ]:
H261-H315-H319-H335
[ Precautionary Statements ]:
P231 + P232-P305 + P351 + P338-P335 + P334-P370 + P378-P402 + P404
[ Personal Protective Equipment ]:
Eyeshields;full-face particle respirator type N100 (US);Gloves;respirator cartridge type N100 (US);type P1 (EN143) respirator filter;type P3 (EN 143) respirator cartridges
[ Hazard Codes ]:
C,Xi,F
[ Risk Phrases ]:
R25
[ Safety Phrases ]:
S23-S26-S36-S36/37/39-S45-S43-S36/37-S16
[ RIDADR ]:
UN 3264 8/PG 3
[ WGK Germany ]:
3
[ RTECS ]:
CQ8370000
[ Packaging Group ]:
III
[ Hazard Class ]:
8
Synthetic Route
Precursor & DownStream
Precursor
DownStream
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