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BARIUM
SHEET (Ba)
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).
GENERAL
PROPERTIES
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Symbol:
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Ba
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Atomic
Number:
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56
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Atomic
Weight:
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137.33
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Density:
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3.5
gm/cc
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Melting
Point:
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725
oC
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Boiling
Point:
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1640
oC
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Thermal
Conductivity:
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20.184
W/cm/oK @ 298.2 oK
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Electrical
Resistivity:
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-
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Electronegativity:
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0.9
Paulings
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Specific
Heat:
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0.046
Cal/g/oK @ 25 oC
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Heat
of Vaporization:
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35.7
K-cal/gm atom at 1640 oC
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Heat
of Fusion:
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1.83
Cal/gm mole
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TYPICAL
ANALYSES
Impurities
in ppm
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Material
/ Purity:
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2N5
|
3N
|
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Al
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<600
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-
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Ca
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<200
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<700
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Cl
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<100
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-
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Fe
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<200
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<100
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Mg
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<200
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<100
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Sr
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<800
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<500
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BARIUM
SHEET
|
Material
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Purity
|
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Barium
Sheet .040” to 1”
|
2N5,
3N
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Sheet
thicknesses are available in increments of .001”.
Sheet is cut to order and sold by the square inch.
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