this post was submitted on 29 Nov 2023
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Chlorine Trifluoride is a better oxidizer than Oxygen itself. Hell, the germans in WW2 tried making self igniting flamethrowers with the stuff. But stopped because it was too nasty to work with.
At that point, they might as well just spray it directly on people. Screw using a fuel to ignite when the trifluoride is enough to set fire to literally anything. Even wet sand can be burnt by it.
Which reminds me of this quote "It is, of course, extremely toxic, but that’s the least of the problem. It is hypergolic with every known fuel, and so rapidly hypergolic that no ignition delay has ever been measured. It is also hypergolic with such things as cloth, wood, and test engineers, not to mention asbestos, sand, and water-with which it reacts explosively. It can be kept in some of the ordinary structural metals-steel, copper, aluminium, etc.-because of the formation of a thin film of insoluble metal fluoride which protects the bulk of the metal, just as the invisible coat of oxide on aluminium keeps it from burning up in the atmosphere. If, however, this coat is melted or scrubbed off, and has no chance to reform, the operator is confronted with the problem of coping with a metal-fluorine fire. For dealing with this situation, I have always recommended a good pair of running shoes. "
Yes, from the book Ignition! by John Clark. Also quoted by Derek Lowe in an entry of his "Things I Won't Work With" articles.