Picture of reaction: Сoding to search: 2 Cs + 2 H2O = 2 CsOH + H2. Cesium also reacts vigorously with acids, the halogens, sulfur, and phosphorus. Cesium hydroxide is a strong base and attacks glass. Thermodynamic properties of substances The solubility of the substances Periodic table of elements. If caesium is burned in air, the result is mainly formation of orange caesium superoxide, CsO 2. Occurrence in nature The abundance of cesium in the Earth's crust has been estimated at about 1 to 3 parts per million. Cesium reacts explosively with cold water, and reacts with ice at temperatures above -116°C. Cesium react with water to produce cesium hydroxide and hydrogen. Cesium is “extremely pyrophoric, ignites spontaneously when in contact with air, and explodes violently in water or ice at any temperature above -116 ° C”. 2Cs(s) + 2H₂O(l) → H₂(g) + 2Cs⁺(aq) + 2OH⁻(aq) The reaction is so explosive that it often shatters the container. Add / Edited: 03.04.2015 / Taking cesium along with "water pills" might decrease potassium in the body too much. Our channel. Cesium reacts with cold water to form hydrogen gas and a solution of cesium ions and hydroxide ions. The caesium sample they used was kept in liquid nitrogen before it was dropped into the water from about a metre above. The water was set to room temperature, and contained phenolphthalein, a chemical compound that turns colourless in acidic solutions and pink in basic solutions. Cesium reacts with the halogens to form a fluoride, chloride, bromide, and iodide. Cs(s) + O 2 (g) → CsO 2 (s) Reaction of caesium with water. Caesium (cesium in USA) metal reacts rapidly with water to form a colourless solution of caesium hydroxide (CsOH) and hydrogen gas (H 2). Cesium, gallium, and mercury are the only three metals that are liquid at or around room temperature. Find another reaction. 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