![]() (Mixing it with molten sulfur is particularly explosive. ![]() It keeps time so accurately that it has even forced us to reconsider what time is. It is pyrophoric and reacts with water even at 116 C (177 F). You can see it in action in this video from Thoisoi2 - Chemical Experiments!, which demonstrates some of the volatile reactions that cesium will produce. Caesium is the chemical element that has literally redefined time. Caesium has physical and chemical properties similar to those of rubidium and potassium. 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. The heat is so great that the hydrogen produced is usually above its ignition point in air and. 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. Caesium reacts violently with water to produce heat, hydrogen gas, and a caesium hydroxide solution. Cesium sulfates are soluble in water and are thought to be used primarily in water treatment, fuel cells, and. cracking, in scintillation counters, and in x-ray phosphors. ![]() 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. CESIUM (Data in metric tons of cesium oxide unless otherwise noted) Domestic Production and Use: In 2019, no cesium was mined domestically, and the United States was 100. ![]() It is highly reactive and pyrophoric, meaning that the mere oxygen in the atmosphere is sufficient to make it go up in flames. Cesium, or caesium, is an alkali metal on the periodic table with the atomic number 55. ![]()
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