The most important use of elemental barium is as a scavenger removing last
traces of oxygen and other gases in television and other electronic tubes.
Besides, an isotope of barium, 133Ba, is routinely used as a standard
source in the calibration of gamma-ray detectors in nuclear physics studies.
Barium is an important component of YBCO superconductors. An alloy of barium with nickel is used in spark plug wire. Barium oxide is used in a coating for the electrodes of fluorescent lamps, which facilitates the release of
electrons. Barium compounds, and especially barite (BaSO4), are extremely
important to the petroleum industry.
- Barite is used in rubber production and in drilling mud, a
weighting agent in drilling new oil
- Barium sulfate is used
as a radiocontrast agent for X-ray imaging of the
digestive system ("barium meals"
enemas"). Lithopone, a pigment that contains barium sulfate and zinc sulfide, is a permanent white
that has good covering power, and does not darken when exposed to sulfides.
- Barium carbonate is
a rat poison and
can also be used in making bricks. Unlike the
sulfate, the carbonate dissolves in stomach acid, allowing it to be poisonous.
Barium carbonate is also used in glassmaking.
Being a heavy element, barium increases the refractive index and luster of the glass.
- Barium, commonly as barium
nitrate, is used to give green colors in fireworks.
The species responsible for the brilliant green is barium monochloride; in the
absence of a source of chlorine a yellow or "apple" green is produced
- Barium peroxide can
be used as a catalyst to start an aluminothermic reaction when welding rail
tracks together. It can also be used in green tracer ammunition and as a bleaching agent.
- Barium titanate was
proposed in 2007 to be used in next generation battery technology for electric
- Barium fluoride is
used for optics in infrared applications, since it is transparent from about
0.15 to 12 microns (http://www.medbib.com/)
of other Barium Compounds, Glass
Industry, Ceramics in Electrical Engineering, Fine
Ceramics, Sanitary Ceramics, Chemical / Pharmaceutical
Industry, Hard Ferrites, water
purifying, building material.