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Substance Name: Barium
RN: 7440-39-3
UNII: 24GP945V5T
InChIKey: DSAJWYNOEDNPEQ-UHFFFAOYSA-N
Note
- An element of the alkaline earth group of metals. It has an atomic symbol Ba, atomic number 56, and atomic weight 138. All of its acid-soluble salts are poisonous.
Molecular Formula
- Ba
Molecular Weight
- 137.33
Classification Codes
- 2007 CERCLA Priority List, Rank: 109
- 2011 CERCLA Priority List, Rank: 126
- TWA 0.5 mg/m3 as Ba
- TWA 0.5 mg/m3; Not classifiable as a human carcinogen
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Names and Synonyms
Name of Substance
- Barium
MeSH Heading
- Barium
Synonyms
- Bario
- Bario [Spanish]
- Barium
- Barium, elemental
- Baryum
- Baryum [French]
- EINECS 231-149-1
- HSDB 4481
- UNII-24GP945V5T
Systematic Name
- Barium
Superlist Names
- Barium
- Barium and soluble compounds
- Barium [UN1400] [Dangerous when wet]
- Barium, soluble compounds
- Barium, water-soluble compounds, n.o.s.
- UN1400
Registry Numbers
CAS Registry Number
- 7440-39-3
FDA UNII
- 24GP945V5T
System Generated Number
- 0007440393