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Topic: Barium sulfate

	Barium sulfate
		Barium sulfate has such a low solubility in water that it is undetectable in solution without the use of elaborate equipment or methods.
		If two soluble ionic compounds, such as barium chloride and ammonium sulfate, are mixed, the ions rearrange to form a precipitate of barium sulfate, leaving ammonium and chloride ions in solution.
		Before the attempt is made to make the barium sulfate precipitate using perfect quantities of reagents, and then to test whether the mixture was indeed perfect, some planning is necessary.
	chem.lapeer.org /Chem1Docs/BaSulfate.html (730 words)

	Barium sulfate - Wikipedia, the free encyclopedia
		The mineral barite is composed largely of barium sulfate and is a common ore of barium.
		Although barium is a heavy metal, and its water soluble compounds are often highly toxic, the extremely low solubility of barium sulfate protects the patient from absorbing harmful amounts of the metal.
		Barium sulfate is used as a filler in plastics and as a component of oil well drilling fluid to increase the density.
	en.wikipedia.org /wiki/Barium_sulfate (356 words)

	Barium
		Barium is a trace element which can apparently affect thyroid function and which may be especially toxic for persons with thyroid disease, especially hyperthyroidism.
		Barium sulfate (BaSO4) is commonly used as a contrast medium in radiography of the intestinal tract.
		Barium seems to cause the same reduced permeability to potassium and this may be its mode of toxicity.
	www.ithyroid.com /barium.htm (710 words)

	ATSDR - Public Health Statement: Barium - Draft for Public Comment
		Barium and barium compounds have been found in at least 798 of the 1,662 current or former NPL sites; however, the total number of NPL sites evaluated for this substance is not known.
		The barium in these compounds that is dissolved in water quickly combines with sulfate or carbonate that are naturally found in water and become the longer lasting forms (barium sulfate and barium carbonate).
		Barium sulfate and barium carbonate are the barium compounds most commonly found in the soil and water.
	www.atsdr.cdc.gov /toxprofiles/phs24.html (2483 words)

	I-X Barium Meal (ca. 1920s) (Site not responding. Last check: 2007-09-15)
		Barium sulfate is used as a contrast agent to improve the visualization of the gastrointestinal tract in an x-ray image.
		A major problem with barium sulfate is that is is not soluble in water.
		In addition, there is the possibility that the accumulated barium sulfate could block constrictions in the GI tract.
	www.orau.org /ptp/collection/Radiology/bariumcontrastIX.htm (244 words)

	[No title] (Site not responding. Last check: 2007-09-15)
		Barium sulfate is mined and used in oil and gas production, medical procedures, and the manufacture of paints, bricks, tiles, glass, and rubber.
		A barium sulfate slurry is consumed by patients undergoing x-rays of the gastrointestinal tract.
		The barium ingestion distance from the distal esophagus to the top of the barium column (barium height) and the maximum diameter of the barium column (barium width) were calculated.
	www.lycoszone.com /info/barium--patients.html (497 words)

	C&EN: IT'S ELEMENTAL: THE PERIODIC TABLE - BARIUM
		Barium chloride, a soluble salt, causes heart problems, but insoluble barite is used as a tracer for X-raying the human intestinal tract because it is extremely dense and opaque to X-rays.
		Barium nitrate and chlorate are used in green-colored fireworks.
		Potters like to use barium carbonate to lower the melting point of a glaze, but are advised to wear a mask and gloves because even the dust is soluble and toxic.
	pubs.acs.org /cen/80th/print/barium.html (756 words)

	barium
		Barium is a metallic element, soft, and when pure is silvery white like lead; it belongs to the alkaline earth group, resembling calcium chemically.
		Barium is emitted into the atmosphere mainly by the industrial processes involved in the mining, refining, and production of barium and barium based chemicals and as a result of combustion of coal and oil.
		Based on autopsy data, barium levels in human bone are relatively constant and do not appear to increase with age, ranging from an average value of 7.0 ppm in bone at age 0 to 3 months to an average of 8.5 ppm at age 33 to 74 years.
	www.speclab.com /elements/barium.htm (1051 words)

	ATSDR - ToxFAQs™: Barium
		Barium sulfate is sometimes used by doctors to perform medical tests and to take x-rays of the gastrointestinal tract.
		Barium has been found to potentially cause gastrointestinal disturbances and muscular weakness when people are exposed to it at levels above the EPA drinking water standards for relatively short periods of time.
		Geometric mean barium level measured in the U.S. general population aged 6 and older is reported by CDC as 1.44 µg/g creatinine (measured in urine).
	www.atsdr.cdc.gov /tfacts24.html (1068 words)

	Barytes,Barium Sulfate,Barite Mineral,Barytes Powder,Barite Supplier
		It is insoluble in water, and this property is made use of in testing for the sulfate radical.
		Prime white, a bleached barite, is used as a pigment in white paint but is not as satisfactory as blanc fixe, a chemically precipitated barium sulfate, or lithopone, a mixture of barium sulfate, zinc sulfide, and zinc oxide.
		It is also found useful in the manufacture of white pigment or extender in pigments and barium chemicals, in the glass industry and as filler in rubber, leather, textile and paper goods.
	www.mineralszone.com /minerals/barytes.html (726 words)

	Barium Sulfate Drug Information, Professional
		Radiography, gastrointestinal—Oral or rectal barium sulfate suspension, and the oral tablet, are indicated for radiographic examination of the gastrointestinal tract.
		Barium sulfate increases the absorption of x-rays as they pass through the body, thus delineating body structures, in which barium sulfate is localized.
		Barium sulfate should not be administered in its dry form since accidental inhalation, esophageal irritation or blockage, or intestinal blockage may occur.
	www.drugs.com /MMX/Barium_Sulfate.html (2611 words)

	It's Elemental - The Element Barium
		Barium is used as a getter, a material that combines with and removes trace gases from vacuum tubes.
		Barium carbonate is used to purify some chemical solutions and is the primary base material for the manufacture of other barium compounds.
		Barium nitrate (Ba(NO) burns with a bright green color and is used in signal flares and fireworks.
	education.jlab.org /itselemental/ele056.html (342 words)

	Barium
		Barium is a metal, but has no significant uses as such.
		A significant medical use of barium is to enhance x-ray images of the intestinal tract.
		The mineral form of barium sulfate is called barite.
	hyperphysics.phy-astr.gsu.edu /hbase/pertab/Ba.html (114 words)

	Method of inhibiting barium sulfate and strontium sulfate scale at low pH - Patent 5486294
		This aqueous acid stream is susceptible to the formation of barium sulfate and strontium sulfate scales due to the SO.sub.4.sup.- ion in the dilute acidic stream.
		These sulfate scales, in addition to fouling the resin, have been linked to naturally occurring radioactive materials which are present in low levels in the produced waters.
		Studies were undertaken to determine the relative efficacy of PESA and phosphonates for barium/strontium sulfate inhibition at low pH such as encountered during regeneration of a water softener resin in a produced water oilfield system.
	www.freepatentsonline.com /5486294.html (1609 words)

	Barium enema
		A barium enema is given in order to perform an x-ray examination of the large intestines.
		The flow of the barium is monitored by the health care provider on an x-ray fluoroscope screen, which is like a TV monitor.
		The barium enema may also be used to diagnose and evaluate the extent of inflammatory bowel diseases.
	pennhealth.com /ency/article/003817.htm (588 words)

	Management Guidance for Barium Sulfate (Site not responding. Last check: 2007-09-15)
		Barium sulfate, the principle active ingredient in the two formulations, is a radiopaque compound used in the diagnostic procedures.
		Barium sulfate is insoluble in both water and dilute acids.
		After the radiographs are taken, the patient will eventually pass the barium formulation when using the bathroom either at the health care facility or at home.
	chppm-www.apgea.army.mil /hmwp/factsheets/barium2.html (338 words)

	Medical Dictionary: Barium sulfate - WrongDiagnosis.com
		Barium sulfate: The sulfate salt of barium, an alkaline, divalent metal.
		Barium sulfate is quite insoluble in water, and is used as a radiopaque agent to diagnose gastrointestinal medical conditions.
		Barium sulfate is taken by mouth or given rectally.
	www.wrongdiagnosis.com /medical/barium_sulfate.htm (195 words)

	sulfate — FactMonster.com
		Sulfates in which both hydrogens are replaced are called normal sulfates; sulfates in which only one hydrogen is replaced are called hydrogen sulfates, acid sulfates, or bisulfates.
		Most metal sulfates are readily soluble in water, but calcium and mercuric sulfates are only slightly soluble, while barium, lead, strontium, and mercurous sulfates are insoluble.
		Sulfuric acid is used in lead storage batteries and in the manufacture of nitric acid; copper sulfate is a common algicide.
	www.factmonster.com /ce6/sci/A0847154.html (332 words)

	Barium - Wikipedia, the free encyclopedia
		Barium (IPA: /ˈbɛːriəm/) is a chemical element in the periodic table that has the symbol Ba and atomic number 56.
		The most important compounds are barium peroxide, barium chloride, sulfate, carbonate, nitrate, and chlorate.
		However, inhaled barium dust can accumulate in the lungs, a benign condition called baritosis.
	en.wikipedia.org /wiki/Barium (708 words)

	Barium Sulfate
		Huberbrite® barium sulfate by Huber has excellent purity and brightness.
		Huber’s barium sulfate products (from stone, typically 97% barium sulfate) are manufactured in its
		Huberbrite® is a registered trademark of J.M. Huber Corporation for barium sulfate.
	www.hubermaterials.com /bariumSulfate.htm (217 words)

	Barium
		Addition of a sulfate source, such as sulfuric acid produces a white, finely divided precipitate of barium sulfate:
		Barium carbonate is soluble in acid, including dilute acetic acid, in strong bases, and in aqueous ammonia.
		Barium chromate is soluble in mineral acids, but only slightly soluble in acetic acid.
	www.public.asu.edu /~jpbirk/qual/qualanal/barium.html (213 words)

	American Elements: Barium Sulfate Supplier & Tech Info (Site not responding. Last check: 2007-09-15)
		Barium Sulfate is a moderately water and acid soluble Barium source for uses compatible with sulfates.
		Sulfate compounds are salts or esters of sulfuric acid formed by replacing one or both of the hydrogens with a metal.
		Barium Sulfate is generally immediately available in most volumes.
	www.americanelements.com /bas.html (117 words)

	Barium Sulfate (Diagnostic)
		Barium sulfate does not pass into the breast milk.
		Although there is no specific information comparing use of barium sulfate in children with use in other age groups, this agent is not expected to cause different side effects or problems in children than it does in adults.
		The presence of other medical problems may affect the use of barium sulfate.
	allnutritionals.com /drugs/b/bariumsulfate-diagnostic.shtml (764 words)

	Barium Sulfate/ Baryte/ Barite/ Blanc Fixe from READE
		Barium sulfate is a white, soluble, heavy compound obtained either from the natural mineral barytes, or by chemical treatment of barium and sulfuric acid.
		Blanc fixe is a synthetic extender precipitated at a definite particle size from purified barium sulphate.
		barium sulfate barytes tiff barium sulfate blanc fixe barium sulfate barytes tiff barium sulfate blanc fixe barium sulfate barytes tiff barium sulfate blanc fixe barium sulfate barytes tiff barium sulfate blanc fixe barium sulfate barytes tiff barium sulfate blanc fixe
	www.reade.com /Products/Other_Compounds/barium_sulfate.html (190 words)

	Welcome to APSI. (Site not responding. Last check: 2007-09-15)
		Sulfates in wastewater are converted to elemental sulfur
		Barium sulfide is added to sulfate bearing water
		Barium sulfate settles to bottom of contact clarifier for dewatering and return to kiln
	www.liquidsolid.com /sulfate_removal_text.html (144 words)

	Barium Sulfate - Barium Sulfate Supplier, Barium Sulfate Manufacturer, Barium Sulfate Factory, Barium Sulfate Exporter, ...
		Our Barium Sulfate product is widely used in the paper making, paint, plastic, rubber, porcelain and chemical industries.
		The production lines are automatically controlled, the Barium Sulfate product quality is stable and it is highly favored by various customers.
		Barium Sulfate is white powder, which is not dissoluble in water, acid, alkali and other solvents.
	www.calcium-carbonate-supplier.com /barium-sulfate-supplier.html (414 words)

	Healthopedia.com Drugs Information - Barium Sulfate
		Radiopaque agents are used to help diagnose certain medical problems.
		USP DI® and Advice for the Patient® are registered trademarks of USP used under license to Micromedex, a business of Thomson Healthcare Inc. Information is for End User's use only and may not be sold, redistributed or otherwise used for commercial purposes.
		Links to other sites are provided for information only -- they do not constitute endorsements of those other sites.
	www.healthopedia.com /drugs/detailed/barium-sulfate (381 words)

	E-Z-EM : Speech Pathology : Varibar®
		Varibar Nectar Barium Sulfate Suspension 240 mL, (40% w/v, 30% w/w)
		NEW Varibar Thin Honey Barium Sulfate Suspension 250 mL, (40% w/v, 29% w/w)
		IMPROVED Varibar Honey Barium Sulfate Suspension 250 mL, (40% w/v, 29% w/w)
	ezem.com /speech_pathology (257 words)

	Welcome to Barium Sulfate worldwide Manufacturer
		Company Limited is a specialized chemical enterprise engaged in the manufacture, RandD and distribution of barium sulfate products.
		About Barium Sulfate - Help - Link - Site Map - Partnerships
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	www.barium-sulfate.com (341 words)

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