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Barium Metal (Ba)-Granules

Barium Metal (Ba)-Granules

CAS: 7440-39-3
Molecular Formula: Ba
Purity: 99.9%
Products Code: 5600GN
Specification Model: 3 mm - 25 mm
Hazardous Class: Class 4.3
EINECS No.: 231-149-1
UN No.: UN1400
Package Class: PG II
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Barium Metal (Ba)-Granules introduce:


Barium is a chemical element with the symbol Ba and atomic number 56. It is the fifth element in group 2 and is a soft, silvery alkaline earth metal.

Phase at STP:solid

Appearance:silvery gray; with a pale yellow tint

Melting point:1000 K (727 °C, 1341 °F)

Boiling point:2118 K (1845 °C, 3353 °F)

Density (near r.t.):3.51 g/cm3

when liquid (at m.p.):3.338 g/cm3

Heat of fusion:7.12 kJ/mol

Heat of vaporization:142 kJ/mol

Molar heat capacity:28.07 J/(mol·K)


Barium has few industrial applications. Historically, it was used as a getter for vacuum tubes and in oxide form as the emissive coating on indirectly heated cathodes. It is a component of YBCO (high-temperature superconductors) and electroceramics, and is added to steel and cast iron to reduce the size of carbon grains within the microstructure. Barium compounds are added to fireworks to impart a green color. Barium sulfate is used as an insoluble additive to oil well drilling fluid, as well as in a purer form, as X-ray radiocontrast agents for imaging the human gastrointestinal tract. The soluble barium ion and soluble compounds are poisonous, and have been used as rodenticides.
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