barium

Modify Date: 2024-01-03 23:12:52

barium Structure
barium structure
Common Name barium
CAS Number 7440-39-3 Molecular Weight 137.32700
Density 3.6 g/mL at 25 °C(lit.) Boiling Point 1640 °C(lit.)
Molecular Formula Ba Melting Point 725 °C(lit.)
MSDS Chinese USA Flash Point N/A
Symbol GHS02 GHS07
GHS02, GHS07
Signal Word Danger

 Names

Name barium(0)
Synonym More Synonyms

 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.

 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
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

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barium Structure

barium

CAS#:7440-39-3

Literature: Ba: SVol., 10, page 169 - 172 FR868299 , ; C. I, , p. 2049

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barium Structure

barium

CAS#:7440-39-3

Literature: Chemical Physics Letters, , vol. 352, # 5-6 p. 369 - 374

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barium Structure

barium

CAS#:7440-39-3

Literature: Physical Review, , vol. 53, p. 935 - 935 Ti: MVol., 3.5, page 189 - 199

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barium Structure

barium

CAS#:7440-39-3

Literature: Mem. Proc. - Manchester Lit. Philos. Soc., , vol. 46, # 4 p. 0 Ba: MVol., 2.1, page 32 - 37

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 Synonyms

EINECS 231-149-1
Barium
MFCD00134031
barium powder
baryum
barium strontium-containing oxide
bario
UNII-24GP945V5T