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| ESPI Metals 1050 Benson Way Ashland, Oregon 97520 541.488.8311 telephone 800.638.2581 toll-free 541.488.8313 fax 800.488.0060 toll-free fax sales@espimetals.com |
Precious Metal Prices
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Serving Research Institutions Worldwide Since 1950 |
MATERIAL OVERVIEW Characteristics: Silver-white, somewhat malleable metal. Extremely reactive; reacts readily with water, ammonia, halogens, oxygen, and most acids. Gives green color in flame. Extrudable and machinable. Derivation: Reduction of barium oxide with Barium or silicon in a vacuum at high temperature. Hazard: Toxic. Flammable (pyrophoric) at room temperature in powder form; store under inert gas, petroleum, or other oxygen-free liquid. When heated to about 200 oC in hydrogen, barium reacts violently, forming BaH2. Tolerance for all soluble barium compounds is 0.5 mg/m3 in air (as Ba). To view a photo of the item hover over the
GENERAL PROPERTIES Symbol: Ba Atomic Number: 56 Atomic Weight: 137.33 Density: 3.5 gm/cc Melting Point: 725 oC Boiling Point: 1640 oC Thermal Conductivity: 20.184 W/cm/K @ 298.2 K Electrical Resistivity: - Electronegativity: 0.9 Paulings Specific Heat: 0.046 Cal/g/K @ 25 oC Heat of Vaporization: 35.7 K-cal/gm atom at 1640 oC Heat of Fusion: 1.83 Cal/gm mole
TYPICAL ANALYSES Impurities in ppm
BARIUM ROD
Rod is cut to order and sold by the inch or foot. Additional diameters are available upon request. Call or e-mail for a quotation.
Sheet thicknesses are available in increments of .001”. Sheet is cut to order and sold by the square inch. Additional thicknesses are available upon request. Call or e-mail for a quotation. BARIUM POWDER, SHOT, PELLETS, & INGOT
Pieces and ingots are packaged to order and sold by the gram or kilogram.
BARIUM COMPOUNDS
Compounds are packaged to order and sold by the gram or kilogram.
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