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barium
barium Chem. (ˈbɛərɪəm) Rarely (and obs.) baryum. [f. bar-yta, -ytes + -ium; cf. soda, sodium. Davy purposely discarded the second syllable of baryta, as in his proposed alumium from alumina, and magnium from magnesia.] a. A white metallic element, not found native, but as the basis of the alkaline ...
Oxford English Dictionary
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Barium
The most common minerals of barium are baryte (barium sulfate, BaSO4) and witherite (barium carbonate, BaCO3). A similar reaction with silicon at yields barium and barium metasilicate.
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barium
barium/ˈbeərɪəm; `bɛrɪəm/ n[U]chemical element, a soft silvery-white metal the compounds of which are used in industry 钡. =>App 10 见附录10.
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Barium star
Barium stars are spectral class G to K stars whose spectra indicate an overabundance of s-process elements by the presence of singly ionized barium, Ba References
Star types
Barium
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Barium acetylacetonate
Barium acetylacetonate is a compound with formula Ba(C5H7O2)2. It is the Ba2+ complex of the anion acetylacetonate. References
Barium compounds
Acetylacetonate complexes
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Barium manganate
Barium manganate is isomorphous with BaCrO4 and BaSO4. Barium manganate can appear as a dark blue or green to black crystals. Preparation
Barium manganate can be prepared from potassium manganate and barium chloride by salt metathesis to give insoluble barium manganate:
Uses
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Barium orthotitanate
Barium orthotitanate is the inorganic compound with the chemical formula Ba2TiO4. Barium orthotitanate can remove up to 99.9% of from a high-temperature gas stream by the reaction:
+ → +
References
Titanates
Barium compounds
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Barium oxalate
Preparation
The raw materials that are required to prepare barium oxalate are oxalic acid and barium hydroxide (or its octahydrate). References
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MSDS
Barium Oxalate
ChemSpider
Barium compounds
Oxalates
Pyrotechnic colorants
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Barium permanganate
Another way to synthesize barium permanganate is by the reaction between silver permanganate and barium chloride. References
Barium compounds
Permanganates
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Cellulitis of the Face, Esophageal Varices on Barium Swallow ... - Symptoma
Cellulitis of the Face, Esophageal Varices on Barium Swallow & Hepatocellular Carcinoma Symptom Checker: Possible causes include Portal Hypertension. Check the full list of possible causes and conditions now! Talk to our Chatbot to narrow down your search.
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RF Gastrointestinal tract upper Views W barium contrast PO
81220-6 Diagnostic imaging report - recommended C-CDA R2.0 and R2.1 sections. This panel contains the recommended sections for diagnostic imaging reports based on HL7 Implementation Guide for CDA® Release 2: Consolidated CDA Templates for Clinical Notes (US Realm) DSTU Releases 2.0 & 2.1.
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Barium nitrite
Synthesis
Barium nitrite can be made by reacting barium nitrate with lead metal sponge, or by reaction of lead nitrite with barium chloride. Safety
Barium nitrite is toxic if ingested or inhaled, as both barium and the nitrite ion are toxic.
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Barium sulfite
Barium sulfite is the inorganic compound with the chemical formula BaSO3. It is a white powder that finds few applications. It is an intermediate in the carbothermal reduction of barium sulfate to barium sulfide:
BaSO4 + CO → BaSO3 + CO2
References
Barium compounds
Sulfites
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Barium ruthenate
Barium ruthenate is an inorganic compound, with the chemical formula of BaRuO3. References
External reading
Barium compounds
Ruthenium(IV) compounds
Transition metal oxides
Perovskites
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Barium metaphosphate
Preparation
Barium metaphosphate can be prepared by the reaction of barium carbonate with metaphosphoric acid:
BaCO3 + 2HPO3 → Ba(PO3)2 +CO2 +H2O
or alternatively References
Barium compounds
Metaphosphates
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