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barium    音标拼音: [b'ɛriəm]
n. 钡

钡

barium
n 1: a soft silvery metallic element of the alkali earth group;
found in barite [synonym: {barium}, {Ba}, {atomic number 56}]

Barium \Ba"ri*um\, n. [NL., fr. Gr. bary`s heavy.] (Chem.)
One of the elements, belonging to the alkaline earth group; a
metal having a silver-white color, and melting at a very high
temperature. It is difficult to obtain the pure metal, from
the facility with which it becomes oxidized in the air.
Atomic weight, 137. Symbol, Ba. Its oxide called baryta.
[Rarely written {barytum}.]
[1913 Webster]

Note: Some of the compounds of this element are remarkable
for their high specific gravity, as the sulphate,
called heavy spar, and the like. The oxide was called
barote, by Guyton de Morveau, which name was changed by
Lavoisier to baryta, whence the name of the metal.
[1913 Webster]

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  • Barium - Wikipedia
    Barium is a chemical element; it has symbol Ba and atomic number 56 It is the fifth element in group 2 and is a soft, silvery alkaline earth metal Because of its high chemical reactivity, barium is never found in nature as a free element
  • Barium Swallow: What to Expect, Side Effects, and Cost
    To do a barium swallow, you swallow a chalky white substance known as barium It’s often mixed with water to make a thick drink that looks like a milkshake When it’s swallowed, this liquid
  • Barium | Uses, Compounds, Facts | Britannica
    barium (Ba), chemical element, one of the alkaline-earth metals of Group 2 (IIa) of the periodic table The element is used in metallurgy, and its compounds are used in pyrotechnics, petroleum production, and radiology
  • Barium swallow: What to expect and side effects - Medical News Today
    Barium is a white liquid used to coat the organs of the digestive system during an X-ray This can help to provide a clearer picture of a person's organs and bones to help reaching a diagnosis
  • Barium in Drinking Water - PA. GOV
    Many industries use barium For example, the medical field uses barium in a swallow test to help with viewing the mouth, throat, and esophagus in X-rays 3 The oil and gas industry commonly uses barium to make drill mud, which allows for easier drilling of oil and gas wells Barium compounds can also be used in the production of tiles, bricks, paints, glass, insect and rat poison, ceramics, as
  • Barium sulfate (oral route) - Side effects uses
    Barium will work better if your stomach and bowels are empty It is important to drink plenty of liquids during and after the test Barium sulfate may cause severe constipation Barium sulfate is also available as an enema and given through the rectum
  • Barium - Element information, properties and uses | Periodic Table
    Element Barium (Ba), Group 2, Atomic Number 56, s-block, Mass 137 327 Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images
  • Barium | Public Health Statement | ATSDR
    Barium is a silvery-white metal that takes on a silver-yellow color when exposed to air Barium occurs in nature in many different forms called compounds These compounds are solids, existing as powders or crystals, and they do not burn well
  • Barium Facts - Element 56 or Symbol Ba - Science Notes and Projects
    Barium is a chemical element with the symbol Ba and atomic number 56 It is an alkaline earth metal that is best known for the green color it adds to fireworks and for its use in barium enemas for x-ray imaging
  • Barium (Ba) Element: Properties, Uses, Reactions, Effects
    Barium makes up 0 425 percent of the Earth’s crust and it is found in different minerals in nature It is impossible to find barium in its free state since the element always combines with sulfur, carbon, or oxygen





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