achemicalused inindustryandmedicine. Inmedicine,bariumsulfateisswallowedby apersonjust before anX-rayis taken oftheirstomachandbowels, so that theseorganscan beseenclearly.
The open circles show the chromaticity of light reflected from a plaque ofbariumsulfate.
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Liquid suspensions ofbariumsulfateare non-toxic, apart from a small risk of producing a disturbance in bowel function for 48 hours after ingestion.
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Bariumsulfateis used in some applications too.
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An exception is the administration of magnesium sulfate in barium chloride poisoning, where sulfate binds to barium to form insolublebariumsulfate.
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The brightening occurs becausebariumsulfateis in the form of a fine precipitate that scatters light back through the silver image layer.
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Shortly after, the process was improved; barium was removed chemically, by double precipitation from a solution asbariumsulfate.
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The paste contains carbon black, "blanc fixe" (bariumsulfate) and lignosulfonate.
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In colorimetrybariumsulfateis used as a near-perfect diffuser when measuring light sources.
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The enema may containbariumsulfatepowder, or a water-soluble contrast agent.
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Different consistencies of liquid and food mixed withbariumsulfateare fed to the patient by spoon, cup or syringe, and x-rayed using videofluoroscopy.
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Bariumsulfateis one of the most insoluble salts of sulfate.
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In the laboratorybariumsulfateis generated by combining solutions of barium ions and sulfate salts.
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A supported palladium catalyst onbariumsulfate, and doped (poisoned) with quinoline hydrogenates alkynes into "cis" -alkenes.
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As thebariumsulfatedoesn't dissolve, this type of contrast agent is an opaque white mixture.
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Fouling of membranes in reverse osmosis systems can occur due to differential solubility ofbariumsulfatein solutions of different ionic strength.
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