Well, it's been a bit too serious around here this week. So I thought today I'd step back to a period when men were men and chlorine azide was a reactive, toxic, and unstable compound that was only good for finding out what sort of explosion it would set off next. What's that? You say that that's still about all it's good for? Staying power, that's what I call it. If you work with the halogen azides, you work with things whose essential character time does not alter.
"Until they blow up", you say. Ah, but that is their essential character. It's the things around them that alter. Make sure you don't put anything next to them that you're not comfortable seeing altered - you know, all sudden-like.
A reader forwarded this 1943 JACS article, the first comprehensive study of chlorine azide, and it's a joy to read. Part of the fun is, of course, watching these folks set off the fireworks. (The challenge with a substance like chlorine azide is finding something that it won't react with violently):
Owing to the extreme instablity of the compound accurate determinations of the bioing and melting points have not been made as yet. Numerous explosions, often without assignable cause, have occurred during the experiments. . ."
Another thing I always enjoy in these papers is the list of recommended protective gear. No leather suits this time a...