Only show
results for:

Topics related to "barium"

barium
barium [Gr.,=heavy], metallic chemical element; symbol Ba; at. no. 56; at. wt. 137.33; m.p. 725°C; b.p. 1,640°C; sp. gr. 3.5 at 20°C; valence +2. Barium is a soft, silver-white, chemically active, poisonous metal with a face-centered cubic crystalline structure. It is an alkaline-earth... Read more
Ba
Ba symbol for the element barium . ... Read more
alkaline earths
alkaline earths , oxides of the alkaline-earth metals , especially of calcium, strontium, and barium. They are not readily soluble in water and form solutions less basic than those of alkalies. ... Read more
barite
barite , barytes [New Lat., from barium], or heavy spar, a white, yellow, blue, red, or colorless mineral. It is a sulfate of barium, BaSO 4 , found in nature as tabular crystals or in granular or massive form and has a high specific gravity. The mineral is widely distributed throughout the ... Read more
alkaline-earth metals
alkaline-earth metals metals constituting Group 2 of the periodic table . Generally, they are softer than most other metals, react readily with water (especially when heated), and are powerful reducing agents, but they are exceeded in each of these properties by the corresponding alkali metal. The... Read more
sulfate
sulfate chemical compound containing the sulfate (SO 4 ) radical . Sulfates are salts or esters of sulfuric acid , H 2 SO 4 , formed by replacing one or both of the hydrogens with a metal (e.g., sodium) or a radical (e.g., ammonium or ethyl). Sulfates in which both hydrogens are replaced are call... Read more
flame test
flame test test used in the identification of certain metals. It is based on the observation that light emitted by any element gives a unique spectrum when passed through a spectroscope. When a salt of the metal is introduced into a Bunsen burner flame, the metallic ion produces characteristic co... Read more
isomorphism
isomorphism , of minerals, similarity of crystal structure between two or more distinct substances. Sodium nitrate and calcium sulfate are isomorphous, as are the sulfates of barium, strontium, and lead. Crystals of isomorphous substances are almost identical. The substances sometimes crystallize to... Read more
strontium
strontium [from Strontian, a Scottish town], a metallic chemical element; symbol Sr; at. no. 38; at. wt. 87.62; m.p. 769°C; b.p. 1,384°C; sp. gr. 2.6 at 20°C; valence +2. Strontium is a soft, silver-yellow metal with three allotropic crystalline forms (see allotropy ). It is an alka... Read more
Appian Way
Appian Way , Lat. Via Appia, most famous of the Roman roads , built (312 BC) under Appius Claudius Caecus. It connected Rome with Capua and was later extended to Beneventum (now Benevento), Tarentum (Taranto), and Brundisium (Brindisi). It was the chief highway to Greece and the East. Its total l... Read more

Encyclopedia entries related to "barium"

Barium Enema
Encyclopedia entry from: Gale Encyclopedia of Surgery: A Guide for Patients and Caregivers Barium enema Definition A barium enema, also known as a lower GI (gastrointestinal) exam, is...are two types of tests: the single-contrast technique, where barium sulfate is injected into the rectum to gain a profile view of the...
Barium
Encyclopedia entry from: The Gale Encyclopedia of Science Barium Barium — a soft, silvery very reactive metallic element —...atomic mass of 137.327, and chemical symbol of Ba. Although pure barium is rarely used outside the laboratory, barium ’ s many compounds...
barium
Book article from: The Columbia Encyclopedia, Sixth Edition barium [Gr.,=heavy], metallic chemical element...3.5 at 20°C; valence +2. Barium is a soft, silver-white, chemically...periodic table . Its principal ore is barite (barium sulfate); it also occurs in the mineral...
Barium sulfate
Encyclopedia entry from: The Gale Encyclopedia of Science Barium sulfate Barium sulfate (BaSO 4 ) is a white or yellow powder or crystalline salt with...insoluble in water, but dissolves in hot concentrated sulfuric acid. Barium sulfate occurs in nature as the mineral barite, or baryte, which is...
barium meal
Book article from: The Oxford Companion to the Body barium meal Some compounds of barium are poisonous, but barium sulphate is a harmless, white, insoluble substance that can be made into a tasteless suspension which is ‘radio-opaque’. This can be swallowed as a ‘...
Periodic Table of the Elements: Barium
Book article from: The Columbia Encyclopedia, Sixth Edition Periodic Table of the Elements: Barium Periodic Table of the Elements: Barium Atomic Number: 56 Atomic Symbol: Ba Barium Atomic Weight: 137.33 Electron Configuration: 2 · 8 ·&thinsp...
barium sulfate
Book article from: The Columbia Encyclopedia, Sixth Edition barium sulfate see barite .
Upper GI Series
Encyclopedia entry from: Gale Encyclopedia of Cancer ...perforation in their bowel should not ingest barium (a radioactive substance used to show...contrast medium is substituted for the barium. Glucagon, a medication sometimes given...asked to drink from a cup of flavored barium sulfate, a thick and chalky-tasting...
Upper GI Exam
Encyclopedia entry from: Gale Encyclopedia of Surgery: A Guide for Patients and Caregivers ...asked to drink from a cup of flavored barium sulfate, a thick and chalky-tasting...surface of the gastrointestinal tract with barium, move overlapping loops of bowel to isolate...the patient's abdomen to spread the barium throughout the folds within the lining...
Hypotonic Duodenography
Encyclopedia entry from: Gale Encyclopedia of Medicine, 3rd ed. ...several minutes, the physician will administer barium through the catheter. Barium is a contrast agent that will help highlight the...rays. After a few films are taken, some of the barium is withdrawn and air is sent in through the catheter...

Dictionary entries related to "barium"

barium star
Book article from: A Dictionary of Astronomy barium star A red-giant star of spectral type G or K in which heavier elements such as barium appear in the spectrum with unusually high...as a Ba II star or a heavy-metal star . Barium stars are similar to CH stars , but are...
barium
Book article from: A Dictionary of Food and Nutrition barium A metal of no known metabolic function, and hence not a dietary essential. Barium sulphate is opaque to X‐rays and a suspension is used (a barium meal) to allow examination of the shape and movements of the stomach for diagnostic...
barium sulphate
Book article from: A Dictionary of Nursing barium sulphate n. a barium salt, insoluble in water, that is opaque to X-rays and is used as a contrast medium in radiography of the gastrointestinal tract. See (barium) enema , barium meal , small bowel (meal) .
barium meal
Book article from: A Dictionary of Nursing barium meal n. a technique for examining the oesophagus, stomach, and duodenum. The patient swallows barium sulphate to coat the lining of the organs, and a series of X-rays is taken. Granules that produce gas to distend the stomach may...
barium follow-through
Book article from: A Dictionary of Nursing barium follow-through n. see small bowel (meal) .
barium enema
Book article from: A Dictionary of Nursing barium enema ( bair -iŭm) n. see enema .
Dulong, Pierre Louis
Dictionary entry from: Complete Dictionary of Scientific Biography ...be reversed. Dulong showed that when barium sulfate, a notoriously “ insoluble...which ” insoluble ” barium carbonate was added to a boiling solution...took place. From the small amount of barium sulfate formed, Dulong considered that...
small bowel
Book article from: A Dictionary of Nursing ...examining the jejunum and ileum in which barium sulphate is injected through a tube passing...radiographs is taken. s.-b. meal ( barium follow-through ) a technique for examining...bowel in which the patient swallows dilute barium sulphate suspension and then a series...
Hope, Thomas Charles
Dictionary entry from: Complete Dictionary of Scientific Biography ...Strontian, Scotland), previously thought to be a form of barium carbonate, contained a hitherto unknown “ earth...xF6; bereiner in 1829. The metals calcium, strontium, and barium were isolated by Davy in 1808. The peculiar expansion of water...
enema
Book article from: A Dictionary of Nursing ...pl. enemata or enemas) a quantity of fluid infused into the rectum through a tube passed into the anus. barium e. an enema using barium sulphate, given to demonstrate the large bowel by X-ray. For double contrast, gas is pumped through the...

Related newspaper, magazine, and trade journal articles from HighBeam Research

Barium carbonate: increase in both consumption and export. (Market Report).
Magazine article from: China Chemical Reporter; 7/16/2002; 700+ words ; Barium carbonate is an important inorganic chemical...electronics sector has channeled development of barium carbonate production in China towards specialized...refined varieties. Present market status Barium carbonate production in China uses mainly...
Barium meal-induced gastric perforation
Magazine article from: Indian Journal of Surgery; 3/1/2004; ; 700+ words ; ...in the morning, she was subjected to Barium Meal Examination which showed dilated...abdominal pain occurred six hours after Barium Meal Examination. Abdominal examination...upright position approximately 30 h after Barium Meal showed presence of free gas under...
Barium: First report of periostitis: case report
Magazine article from: Reactions Weekly; 11/8/2008; ; 625 words ; ...developed periostitis after receiving a barium swallow [salt, dosage, duration of...genioglossus completion, he received a barium swallow as part of preoperative work...in his anterior mandibular region. The barium swallow was reviewed and contrast material...
The Barium enigma
Magazine article from: The Journal of Nuclear Medicine; 7/1/1999; ; 700+ words ; ...curious pattern emerges: the element barium has played a key role in an astonishing...type of radiation was the faint glow of a barium platinocyanide screen lying on a nearby...that he had discovered something new. (Barium platinocyanide is intensely fluorescent...
Yuci Barium Salt Chemical Plant.
Magazine article from: China Chemical Reporter; 4/16/2001; 700+ words ; Yuci Barium Salt Chemical Plant is one of the biggest...enterprises for the production and marketing of barium hydroxide and its series products in China. Produt profile Crystal mono-hydrate barium hydroxide superior class Produt profile...
Natural Barium Sulphate (Barytes): Trends and Prospects in International Trade.
M2 Presswire; 11/13/2009; 638 words ; ...November 2009-Research and Markets: Natural Barium Sulphate (Barytes): Trends and Prospects...researchandmarkets.com/research/7b9b70/natural_barium_sul) has announced the addition of the "Natural Barium Sulphate (Barytes): Trends and Prospects...
Present Status of Barium Salts Supply and Demand in China
Magazine article from: China Chemical Reporter; 2/10/1995; 700+ words ; The annual output of barium salts in the world is 500 000-600 000 tons in recent years. The main products include barium carbonate, barium sulfate and barium chloride, and also barium hydroxide, barium...
Research and Markets: Natural Barium Sulphate (Barytes): Trends and Prospects in International Trade.
Business Wire; 11/13/2009; 700+ words ; ...researchandmarkets.com/research/a7ddc4/natural_barium_sul) has announced the addition of the "Natural Barium Sulphate (Barytes): Trends and Prospects...worldwide market trends pertaining to natural barium sulphate (barytes). The report will be...
Current situation and prospects for the barium carbonate market in China. (Market Report).(Illustration)
Magazine article from: China Chemical Reporter; 2/6/2003; 700+ words ; Barium carbonate is widely applied in such sectors...development of the electronic industry, barium carbonate production has been developing...and witherite technology for production of barium carbonate. Over 30 producers are engaged...
Present status and development trend of the barium carbonate and strontium carbonate market.(Inorganics)
Magazine article from: China Chemical Reporter; 6/26/2004; 700+ words ; ...years respectively in the production of barium carbonate and strontium carbonate. Since...rapid expansion. There are more than 40 barium carbonate and strontium carbonate producers...incomplete statistics, the total output of barium carbonate and strontium carbonate in China...