Search results
Results From The WOW.Com Content Network
Barium sulfide is the inorganic compound with the formula Ba S. BaS is the barium compound produced on the largest scale. [ 3 ] It is an important precursor to other barium compounds including barium carbonate and the pigment lithopone , ZnS/BaSO 4 . [ 4 ]
Barium sulfate has a low toxicity and relatively high density of ca. 4.5 g/cm 3 (and thus opacity to X-rays). For this reason it is used as a radiocontrast agent in X-ray imaging of the digestive system (" barium meals " and " barium enemas ").
Barium sulfate (or sulphate) is the inorganic compound with the chemical formula Ba SO 4.It is a white crystalline solid that is odorless and insoluble in water.It occurs in nature as the mineral barite, which is the main commercial source of barium and materials prepared from it.
Catalyst poisoning is the partial or total deactivation of a ... (over barium sulfate or calcium ... Common catalysts used are tungsten and molybdenum sulfide.
To reduce toxicity concerns, it is often substituted with strontium carbonate, which behaves in a similar way in glazes but is of lower toxicity. In the brick, tile, earthenware and pottery industries barium carbonate is added to clays to precipitate soluble salts (calcium sulfate and magnesium sulfate) that cause efflorescence.
Reaction with hydrogen sulfide produces barium sulfide. Precipitation of many insoluble, or less soluble barium salts, may result from double replacement reaction when a barium hydroxide aqueous solution is mixed with many solutions of other metal salts. [17] Reactions of barium hydroxide with ammonium salts are strongly endothermic.
An El Paso Water employee died from the toxic effects of hydrogen sulfide, or sewer gas, and possible drowning, according to findings from an autopsy done by an El Paso County medical examiner.
The reaction is performed in solution and the barium acetate crystalizes out at temperatures above 41 °C. Between 25 and 40 °C, the monohydrate version crystalizes. Alternatively, barium sulfide can be used: [2] BaS + 2 CH 3 COOH → (CH 3 COO) 2 Ba + H 2 S. Again, the solvent is evaporated off and the barium acetate crystallized.