Re: Properly Dangerous Rocket Fuel
Very close to the original :
"(Chlorine trifluoride) 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."
Ignition! by J.D. Clark, a very good read even if you're not really into chemistry :)