(Mixing it with molten sulfur is particularly explosive. UN2687 102 Dicyclohexylammonium nitrate 101 Carbamate. You can see it in action in this video from Thoisoi2 - Chemical Experiments!, which demonstrates some of the volatile reactions that cesium will produce. solution 102 UN2680 102 Lithium hydroxide monohydrate UN2681 102 Caesium. Another contract has been let for a Liquid Radioactive Waste Treatment. Even if the stuff is cooled to minus 177 degrees Fahrenheit, dropping it in water will cause an explosive reaction with the oxygen in the liquid. Two radionuclides, the short-lived iodine-131 and the long-lived caesium-137. Per gram, cesium is more expensive than gold, and when it solidifies, it forms delicate crystal structures that even look like gold.īut toss it in water, or just leave it exposed to the ambient air, and it will self-ignite to send up purplish-pink chemical flames. With an extremely low melting point of 28.5 degrees Celsius, or about 83 degrees Fahrenheit, cesium is one of only five elemental metals that is liquid at near-room temperatures. It is highly reactive and pyrophoric, meaning that the mere oxygen in the atmosphere is sufficient to make it go up in flames. 'Dont drop it,' he warns when I take the ampoule. Cesium, gallium, and mercury are the only three metals that are liquid at or around room temperature. Bi) in the temperature range from the liquidus curve to 1000 K. It is pyrophoric and reacts with water even at 116 C (177 F). ![]() note 2 Caesium has physical and chemical properties similar to those of rubidium and potassium. Cesium, or caesium, is an alkali metal on the periodic table with the atomic number 55. It is the most electropositive and most alkaline element. Density and thermal expansion measurements have been performed for liquid caesium and caesiumbismuth alloys (2066.7 at. It is a soft, silvery-golden alkali metal with a melting point of 28.5 C (83.3 F), which makes it one of only five elemental metals that are liquid at or near room temperature.
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