Barium

Base Information

• Chemical Name: Barium
• CAS No.: 7440-39-3
• Molecular Formula: Ba
• Molecular Weight: 137.33
• European Community (EC) Number: 231-149-1
• ICSC Number: 1052
• UN Number: 1400
• UNII: 24GP945V5T
• DSSTox Substance ID: DTXSID8023894
• Wikipedia: Barium
• Wikidata: Q1112
• NCI Thesaurus Code: C61475
• ChEMBL ID: CHEMBL4297653
• Mol file: 7440-39-3.mol

Synonyms:Barium

Chemical Property of Barium

Chemical Property:

• Appearance/Colour: rod
• Melting Point: 725 °C(lit.)
• Boiling Point: 1640 °C(lit.)
• PSA: 0.00000
• Density: 3.6 g/mL at 25 °C(lit.)
• LogP: 0.22500
• Water Solubility.: Insoluble (decomposes)
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 0
• Exact Mass: 137.905247
• Heavy Atom Count: 1
• Complexity: 0
• Transport DOT Label: Dangerous When Wet

Purity/Quality:

99.9% ^*data from raw suppliers

Safty Information:

• Pictogram(s): Flammable (pyrophoric) at room temperature in powder form; store under inert gas, petroleum, or other oxygen-free liquid. When heated to approximately 200C in hydrogen, barium reacts violently, forming BaH₂. TLV: for all soluble barium compounds, 0.5 mg/m³ (as barium).
• Hazard Codes: Flammable (pyrophoric) at room temperature in powder form; store under inert gas, petroleum, or other oxygen-free liquid. When heated to approximately 200C in hydrogen, barium reacts violently, forming BaH2. TLV: for all soluble barium compounds, 0.5 mg/m3 (as barium).

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Chemical Classes: Metals -> Metals, Inorganic Compounds
• Canonical SMILES: [Ba]
• Recent ClinicalTrials: Cough, Expiratory Training, and Chronic Aspiration After Head and Neck Radiotherapy
• Recent NIPH Clinical Trials: Usefulness of onigiri esophagography for esophageal motility disorders screening: a multicenter, prospective study
• Effects of Short Term Exposure: The substance is irritating to the eyes, skin and respiratory tract.

Technology Process of Barium

There total 85 articles about Barium which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 100.0%

barium azide (18810-58-7) → barium (7440-39-3)

Guidance literature:

from solid recrystd. BaN6; hydrolysis; pure metal;

Reference yield: 100.0%

barium hexammine → barium (7440-39-3)

Guidance literature:

byproducts: NH3; decompn. in vac.;

Reference yield: 98.5%

aluminium (7429-90-5) + barium(II) oxide → barium (7440-39-3)

Guidance literature:

5h in vac. at 1300-1340 °C; Metal distilles off. Repeated distn. gives 99.5% purity;

upstream raw materials:

magnesium

aluminium

pyrographite

barium sulfide

Downstream raw materials:

sodium

barium hydroxide

HBaOH

barium dihydroxide

Refernces

• 1、 Feng, Aiguo,Chen, Ling,Piazza, Timothy W.,Li, Hongwen,Kaloyeros, Alain E.,et al.. "". . p. 1248 - 1250. Retrieved 1991.
• 2、 Eachus, R. S.,McDugle, W. G.,Nuttall, R. H. D.,Olm, M. T.,Koschnick, F. K.,et al.. "". . . Retrieved 1991.
• 3、 Pal,Bid,Pradhan,Nath,Das,Chakravorty. "Synthesis of nanocomposites comprising iron and barium hexaferrites". . p. 42 - 47. Retrieved 2004.
• 4、 Garner, W. E.,Moon, C. H.. "". . p. 513 - 513. Retrieved 1933.
• 5、 González Ure?a,Gasmi,Jiménez,Lobo. "Excitation laser fluence effects on the Ba ... FCH3 + hv τ BaF + CH3 intracluster reaction". . p. 369 - 374. Retrieved 2002.
• 6、 -. "Group 2 metal containing catalyst system". . . Retrieved 2008/06/13.