Animated video: 37 principles of chemical reactions and their dangers—The Pillar of Darkness

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Principle: Black coffee will not turn into this. The mixture in the cup consists of ***amine and concentrated sulfuric acid; when heated, a very complex reaction takes place – in fact, we still do not fully understand the details of this reaction. The atomic ratio of the resulting black foam is C6H3N1.5S0.15O1.3, and it is almost certainly a polymer formed through the cross-linking of *** amines; this entire reaction is sometimes referred to as \"explosive polymerization\". Its expansion to such a large size and length is due to the formation of gases such as carbon dioxide during the reaction. Fun fact: This reaction was discovered by NASA researchers in the 1970s; they considered using it as a fire extinguishing agent, as the black foam produced is very stable and has excellent heat-insulating properties. Recorder: plasticraincoat1 Risk: Medium to high. It is toxic to *** amines; concentrated sulfuric acid is also dangerous, and the reaction produces nitrogen oxides and sulfur oxides gases as well. P.S. Please do not associate with the last experiment.