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BARIUM SULFITE

The operator should wear goggles and long-sleeved gloves during the next two operations. The dried, pulverized barium salt is introduced in 200-g. portions into a melt of 600 g. each of sodium and potassium hydroxides contained in a 14 by 20 cm. copper beaker. The mixture is stirred with a copper stirrer and the temperature determined with a thermometer in a copper well (Note 5). Each portion is well stirred in before the next is added. The temperature is then slowly raised to 250-260°, at which point a vigorous reaction occurs with copious evolution of gas. After this has slackened (about one-half hour) the temperature is raised to 280-310° and maintained there for one hour, then allowed to drop to 200°. The melt is ladled into 6 1. of water (Notes 6 and 7). The barium sulfite is filtered by suction, and the filtrate is acidified with concentrated hydrochloric acid (about 2.5 1. is required). [Pg.28]

Barium compounds (barinm acetate, barinm carbonate, barium chloride, barium sulfide, barium sulfite)... [Pg.237]

The differences in the names of compounds can be life-and-death details. For example, physicians sometimes prescribe a barium sulfate slurry or barium sulfate enema for patients who are about to have a stomach or intestinal X-ray film taken. The barium sulfate is opaque to X-rays and outlines the stomach or colon clearly (Figure 6.3). However, barium ion is poisonous to humans. Barium sulfate is safe only because it is too insoluble to be harmful. However, if barium sulfite were given instead of barium sulfate, the compound would dissolve in the stomach or colon, and the patient might die. The one-lettCT difference in the name is critical. [Pg.182]

Manganous Chloride 7787-39-5 Barium Sulfite 79-09-4 Propionic Acid... [Pg.1092]

BARIUM SULFITE (7787-39-5) Contact with water, steam, acids, or acid fumes can cause decomposition with the formation of toxic and corrosive sulfur dioxide gas. Attacks aluminum in the presence of moisture. [Pg.153]

Barium sulfite, chromium(III) oxide, potassium periodate, calcium hydrogen phosphate... [Pg.169]

Soluble sulfites precipitate Ba as barium sulfite, BaSOs, white, insoluble in water but soluble in HCl (distinetionfrom the sulfate). [Pg.46]

Barium sulfite BaSOj 5.0 10 Cobalt(II) phosphate WPOA 2.05 10- ... [Pg.1209]

Barium Sulfite Sat d. s Copper Sulfate Dilute s s Hexanoi, Tert. s s... [Pg.114]

Zinc Hydrosulfite Zinc Nitrate Fluorine Graphite Oxygen Chlorine Nitrous Acid Sulfurous Acid Hydrogen Sulfide Selenic Acid Ammonium Hyposulfite Ammonium Thiosulfate Ammonium Sulfate Ammonium Phosphate Dibasic Diammonium Phosphate Hexafluorouranium Uranium Hexafluoride Silver Chloride Aluminum Fluoride Aluminum Trifluoride Aluminum Ammonium Sulfate Ammonium Alum Silver Bromide Magnesium Chloride Magnogene Barium Sulfite Bismuth Trichloride Cesium Bromide... [Pg.3489]

See other pages where BARIUM SULFITE is mentioned: [Pg.98]    [Pg.37]    [Pg.571]    [Pg.19]    [Pg.298]    [Pg.171]    [Pg.1072]    [Pg.125]    [Pg.125]    [Pg.115]    [Pg.110]    [Pg.156]    [Pg.701]    [Pg.1322]    [Pg.693]    [Pg.1278]    [Pg.1106]    [Pg.1313]    [Pg.92]    [Pg.1008]    [Pg.1126]    [Pg.854]    [Pg.680]    [Pg.775]    [Pg.1079]    [Pg.1361]    [Pg.28]    [Pg.37]    [Pg.739]    [Pg.1023]    [Pg.773]    [Pg.1076]    [Pg.693]    [Pg.1098]    [Pg.3374]    [Pg.3472]    [Pg.146]   
See also in sourсe #XX -- [ Pg.92 ]



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