Cesium chloride (CsCl) and cesium nitrate (CsNO 3) are cesium's most common compounds and are primarily used in the production of other chemicals. Cesium hydroxide is the strongest base known and will attack glass. Since it is easily ionized and has a high mass, cesium ions may one day be used as a propellant in ion engines on spacecraft.Ĭesium reacts violently with water and ice, forming cesium hydroxide (CsOH). set out to create an application to visualize. Cesium is also used in atomic clocks, in photoelectric cells and as a catalyst in the hydrogenation of certain organic compounds. Caesium is a soft metal which is often liquid at room temperature due to its relatively low melting point (28.5C). Cesium began in 2011, when a team of developers at aerospace software company Analytical Graphics, Inc. Cesium readily combines with oxygen and is used as a getter, a material that combines with and removes trace gases from vacuum tubes. The radiation source in the Goiânia accident was a small capsule containing about 93 grams (3.3 oz) of highly radioactive caesium chloride (a caesium salt made with a radioisotope, caesium-137) encased in a shielding canister made of lead and steel. Because of the bright blue lines in the emission. Cesium is recovered from cesium azide by heating it.Ĭesium has the second lowest melting point of all metallic elements, which limits its uses. In 1860, Robert Bunsen and Gustav Kirchhoff discovered caesium in the mineral water from Drkheim, Germany. Metallic cesium is too reactive to easily handle and is usually sold in the form of cesium azide (CsN 3). To obtain pure cesium, cesium and rubidium ores are crushed and heated with sodium metal to 650☌, forming an alloy that can then be separated with a process known as fractional distillation. Obtaining pure cesium is difficult since cesium ores are frequently contaminated with rubidium, an element that is chemically similar to cesium. It occurs in pollucite and lepidolite and is used in photocells. Today, cesium is primarily obtained from the mineral pollucite (CsAlSi 2O 6). Caesium definition, a ductile silvery-white element of the alkali metal group that is the most electropositive metal. They named cesium after the blue lines they observed in its spectrum. The first caesium metal was produced in 1882 by Carl Setterberg. Cesium was discovered by Robert Wilhelm Bunsen and Gustav Robert Kirchhoff, German chemists, in 1860 through the spectroscopic analysis of Durkheim mineral water.
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