Brief introduction
Product name: Barium metal granules
Cas: 7440-39-3
Purity: 99.9%
Formula: Ba
Size: -20mm, 20±5mm, 20-50mm (under argon or oil)
Melting point: 725 °C(lit.)
Boiling point: 1640 °C(lit.)
Density: 3.6 g/mL at 25 °C(lit.)
Form: irregular shape in granules/pellets/ingots
Color :Silver-gray
Package: 1kg per sealed can
Product | Barium | ||
CAS No | 7647-17-8 | ||
Batch No. | 16121606 | Quantity: | 100.00kg |
Date of manufacturing: | Dec,16,2016 | Date of test: | Dec,16,2016 |
Test Item w/% | Results | Test Item w/% | Results |
Ba | >99.92% | Sb | <0.0005 |
Be | <0.0005 | Ca | 0.015 |
Na | <0.001 | Sr | 0.045 |
Mg | 0.0013 | Ti | <0.0005 |
Al | 0.017 | Cr | <0.0005 |
Si | 0.0015 | Mn | 0.0015 |
K | <0.001 | Fe | <0.001 |
As | <0.001 | Ni | <0.0005 |
Sn | <0.0005 | Cu | <0.0005 |
Test Standard | Be, Na and other 16 elements: ICP-MS
Ca, Sr: ICP-AES Ba: TC-TIC |
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Conclusion: |
Comply to the enterprise standard |
Barium is a chemical element with symbol Ba and atomic number 56. It is the fifth element in Group 2, a soft silvery metallic alkaline earth metal. Because of its high chemical reactivity, barium is never found in nature as a free element.
Applications: Metal and alloys, bearing alloys; lead–tin soldering alloys – to increase the creep resistance; alloy with nickel for spark plugs; additive to steel and cast iron as an inoculant; alloys with calcium, manganese, silicon, and aluminum as high-grade steel deoxidizers.Barium has only a few industrial applications. The metal has been historically used to scavenge air in vacuum tubes. It is a component of YBCO (high-temperature superconductors) and electro ceramics, and is added to steel and cast iron to reduce the size of carbon grains within the microstructure of the metal.
Barium, as a metal or when alloyed with aluminum, is used to remove unwanted gases (guttering) from vacuum tubes, such as TV picture tubes. Barium is suitable for this purpose because of its low vapor pressure and reactivity towards oxygen, nitrogen, carbon dioxide, and water; it can even partly remove noble gases by dissolving them in the crystal lattice.
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