barium compound


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barium compound

Any of the compounds containing barium and suitable diluents or additives. They are used in the form of insoluble barium sulfate, to visualize, that is, to outline, the hollow viscera in roentgenography. Poisoning occasionally occurs when the soluble salts are used accidentally in place of the insoluble sulfate.
See also: compound
References in periodicals archive ?
Barium gets into the air during the mining, refining, and production of barium compounds, and from the burning of coal and oil, and the length of time that barium will last in air, land, water, or sediments depends on the form of barium released.
of BaO2 is formed by reaction of barium salt solution and hydrogen peroxide solution BaO2 crystallizes as grayish white transparent tetragonal crystals which are isomorphous with barium sulfate, which also gives a vivid green color, as do all barium compounds. White or gray powder microstrip, in the air to absorb carbon dioxide emits oxygen generation barium carbonate, with the formation of acid salt and hydrogen peroxide.
8hrTWA Substance (time-weighted average) Barium compounds, soluble (as Ba) 0.5 mg/[m.sup.3] Beryllium & beryllium compounds (as Be) 0.002 mg/[m.sup.3] Cadmium oxidefume (as Cd) 0.025 mg/[m.sup.3] Carbon monoxide 30 ppm Chromium III compounds (as Cr) 0.5 mg/[m.sup.3] Chromium VI compounds (as Cr) 0.05 mg/[m.sup.3] Cobalt & cobalt compounds (as Co) 0.1 mg/[m.sup.3] Copper fume 0.2 mg/[m.sup.3] Fluoride (as F) 2.5 mg/[m.sup.3] Iron oxide, fume (as Fe) 5 mg/[m.sup.3] Manganese, and its inorganic compounds 0.5 mg/[m.sup.3] Nickel (insoluble compounds) 0.5 mg/[m.sup.3] Nitric Oxide 1 ppm Nitrogen dioxide 1 ppm