It is the 8th most abundant element in the Earth's crust, constituting 2% by mass. Antoine Bussy was the first to produce it in consistent form in 1831. Magnesium was first discovered in 1808 by Sir Humphry Davy in England by the electrolysis of magnesia and mercury oxide. Atomic Number = 12 Mass = 24.31 g mol -1 Electrion Configuration = 3s 2 Density = 1.738 g cm -3.The impure barium sulfide phosphoresces after exposure to the light.īarium carbonate has been used in the past as a rat poison, while the nitrate and chlorate give fireworks a green colour.\) where, the X-rays show a complete picture of the gastro-intestinal tract. Because it is a contrast agent that is used to better visualize the gastro-intestinal tract via radiology. ‘ barium meal’ or ‘ barium enema’ known as Barium Sulphate.īarium sulfate is insoluble and it has low toxicity, so it can be given sometimes to patients suffering from digestive disorders.ĭue to high opacity, It is also used in X-rays diagnostic work. The most important barium compounds are chloride, carbonate, sulfate, peroxide, nitrate, and chlorate.īarium alloys with calcium, silicon, manganese, and aluminum as high-grade steel deoxidizers.īarium is used in barium-nickel alloys for spark-plug electrodes.īarium-aluminium alloyed is used to remove unwanted gases (gettering) from vacuum tubes, such as TV picture tubesīarium compounds are used as a weighing agent in drilling fluids for oil and gas wells, and also used to in making paint, glass, tiles, bricks, and rubber. (Barium vapour condensed and packed into molds in environment of argon) Barium Historyįirst isolation: Humphry Davy (1808) in London Barium Uses Remaining barium oxide reacts with the formed aluminium oxide (Al 2O 3): Intermetallic compound (BaAl 4) reacted with barium oxide to produce the metal. The metal is produced by reduction with Aluminium: Pure barite reduced by carbon to barium sulfide: React with Hydrogen (forming Barium hydride):īarium reacts with hydrochloric acid and form a barium chloride:īa (s) + 2 HCl (aq) → Bacl 2 (aq) + H 2 (g) Reacts Readily with water (slower than radium and quicker than strontium) to form Barium (lll) hydroxide and hydrogen gas:īa (s) + 2 H 2O (l) → Ba(OH) 2 (aq) + H 2 (g) The metal once ignited, burns readily to form Barium oxide and Barium nitride:īarium Reactions with water and alcohols are very exothermic and release hydrogen gas ( R is alkyl group or a hydrogen atom) Ionization energies: 1st: 502.9 kJ.mol 2nd: 965.2 kJ/mol 3rd: 3600 kJ/molīody Centered Cubic (BCC) Reactivity of BariumĮlectron affinity: 13.95 kJ/mol Nuclear Properties of Barium Sound Speed: 1620 m/s Atomic Properties of Barium Molar magnetic susceptibility: 1.552×10 -9 m 3/mol Physical Properties of Bariumĭensity: 3.51 g/cm 3 (In solid) 3.338 g/cm 3 (In Liquid) Mass magnetic susceptibility: 11.3×10 -9 m 3/kg Volume magnetic susceptibility: 0.00003966 Magnetic susceptibility (x mol): +20.6×10 -6 cm 3/mol Thermal conductivity: 18.4 W/(m∙K) Electrical properties of BariumĪ Electrical type: Conductor Magnetic Properties of Barium Barium Electron Configuration Thermal Properties of Barium
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |