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CAS No 7727-43-7 , barium(2+)

  • Name: barium(2+)
  • Synonyms: Barotrast; Barocat; Barite;Esophotrast; Barosperse II; Baritop; Baricon;sulfate; Barosperse;barium(2+); Oratrast;
  • CAS Registry Number:
  • Melting Point: 1580 ºC
  • Density: 4.5
  • Water Solubility: 0.0022 G/L (50 ºC)
  • Safety Statements: Questionable carcinogen with experimental tumorigenic data. Mutation data reported. A relatively insoluble salt used as an opaque medium in radiography. Soluble impurities can lead to toxic reactions. Heating with aluminum can produce an explosion. Incompatible with aluminum and potassium. When heated to decomposition it emits toxic fumes of SOx.
  • Hazard Symbols: TLV: 10 mg/m3.
  • EINECS: 231-784-4
  • Molecular Weight: 233.3896
  • InchiKey: TZCXTZWJZNENPQ-UHFFFAOYSA-L
  • InChI: InChI=1S/Ba.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2
  • Risk Statements: S24/25
  • Molecular Formula: BaO4S
  • Molecular Structure:CAS No:7727-43-7 barium(2+)

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7727-43-7; 13462-86-7 Barium sulfate

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References of barium(2+)
Title: Barium Sulfate
CAS Registry Number: 7727-43-7
Synonyms: Blanc fixe
Trademarks: Baritop (Sakai); Barosperse (Mallinckrodt); Esophotrast (RPR); E-Z-Paque (E-Z-Em); Intestibar (Spofa); Micropaque (Guerbet); Microtrast (Guerbet); Mixobar (Byk Gulden); Neobar (Merck KGaA); Oratrast (RPR); Prontobario (Bracco); Radiopaque (Schering AG); Telebar (Guerbet); Tixobar (Astra)
Molecular Formula: BaO4S
Molecular Weight: 233.39
Percent Composition: Ba 58.84%, O 27.42%, S 13.74%
Line Formula: BaSO4
Literature References: Occurs in nature as the mineral barite; also as barytes, heavy spar. Prepn: Gmelins, Barium (8th ed) 30, 262-267 (1932) and supplement, 182-186, 412-414 (1960). Review of clinical use: R. F. Theoni, A. R. Margulis, Radiology 167, 7 (1988).
Properties: Fine, heavy, odorless powder or polymorphous crystals, d 4.25-4.5. Dec above 1600°. Practically insol in water (one gram dissolves in 400,000 parts), dil acids, alc. Sol in hot concd H2SO4.
Density: d 4.25-4.5
CAUTION: Potential symptoms of overexposure by direct contact are irritation of eyes, nose and upper respiratory system; inhalation may cause benign pneumoconiosis. See NIOSH Pocket Guide to Chemical Hazards (DHHS/NIOSH 97-140, 1997) p 24.
Use: Manuf photographic papers, artificial ivory, cello-phane; filler for rubber, linoleum, oil cloth, polymeric fibers and resins, paper, lithographic inks; as a water-color pigment for colored paper, in wallpaper; as a size for modifying the colors of other pigments; in heavy concrete for radiation shield.
Therap-Cat: Diagnostic aid (radiopaque medium).
Therap-Cat-Vet: X-ray contrast medium.
Keywords: Diagnostic Aid (Radiopaque Medium).