| 单词 |
barium chloride |
| 释义 |
DictionarySeebariumBarium Chloride
barium chloride[′bar·ē·əm ′klȯr‚īd] (inorganic chemistry) BaCl2 A toxic salt obtained as colorless, water-soluble cubic crystals, melting at 963°C; used as a rat poison, in metal surface treatment, and as a laboratory reagent. Barium Chloride BaCl2, a salt that exists under normal conditions in the form of colorless crystals of the dihydrate Ba02·2H2O with a density of 3.1 g/cm3. It loses water on heating to 100° C. Anhydrous barium chloride melts at 960° C. It is highly soluble in water (35.7 g per 100 g H20 at 20° C). Barium chloride is produced by roasting a mixture of barite, coal, and calcium chloride in combustion furnaces. It is used to combat agricultural pests and as a weighting and clarifying compound in tanning. Alloys of barium chloride with chlorides of alkali and alkali earth metals are used in the tempering and quenching of steel. barium chloride
bar·i·um chlo·rideformerly used as a heart tonic and for varicose veins; extremely toxic. |
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