Animated video: 37 principles of chemical reactions and their dangers—The dazzling “cesium””

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Principle: Cesium is a reactive alkali metal that reacts explosively with water to produce hydrogen gas. High-speed photography requires intense light; the high temperature generated by this light prevents cesium from remaining in a solid state, which is why ampoules are used to contain liquid cesium in the experiments. The moment the small hammer shattered the ampoule, cesium droplets spilled out; they reacted with water vapor and oxygen in the air, leaving behind trails, and when they entered water, they caused explosive reactions. Fun fact: There is a phishing post on the Internet that reads, “...Edison grew impatient, took a cesium block, dipped it in water, poured the excess water into a measuring cup to determine its volume, and thus found out the volume of the cesium block.” ”Perhaps this is the real reason for Edison’s deafness? Recorder: PeriodicVideos. Danger: High. Cesium reacts violently with water; take precautions.