This isn’t particularly obvious, and the work isn’t very well-known outside the science fiction community, but it sort of fits in this thread.
When I was a kid we were given a tour of our fire department, and one of the weirder devices they showed us were glass spheres filled with liquid. These were “firebombs” or “fire grenades”. The liquid inside was carbon tetrachloride. The idea, they said, was to lob these into a burning building through a door, window, or chimney. The glass ball would burst, spreading the carbon tet everywhere. In the heat, it would vaporize and smother the fire.
I was surprised to learn that something very similar was once placed near furnaces in homes. If a fire started, the heat would burst the glass ball full of carbon tetrachloride, smothering the fire. Sort of a very low tech sprinkler system, or halon system.
Of course, carbon tetrachloride affects the nervous system, is one of the most potent liver toxins, and is a suspected carcinogen. It’s hard to believe today that the Golden Book of Chemistry Experiments from my youthh had lots of experiments using carbon tet (and that it was so easy to get in those days). Websites about Carbon Tetratchloride Bombs warn about the danger of these items, and advise home owners to have them properly disposed of.
These sites have their use stopping in 1910 to 1940, but pretty obviously firefighters were still using them into the 1960s and 1970s, as my own experience shows. This article says they were phased out after 1954 (the vaporizing carbon tet turned into phosgene gas, which was used as a chemical weapon in WWI). Obviously not everyone got the word. Our bombs didn’t look as fancy as a lot of these – they were just plain unadorned glass balls
What’s the creative work? Reflecting on the history of carbon tet recently, I remembered Harry Harrison’s second novel in his Deathworld trilogy. In Deathworld 2 the hero finds himself on a world where knowledge of technology has regressed,. and specialized knowledge is in the hands of highly regulated and secretive guilds. The member of the one specializing in chemistry protect themselves by throwing glass balls similar to these Fire Grenades, except that they’re filled with hydrochloric acid. (They also use HCl-filled glass containers as booby traps in items they want kept secret, like internal combustion engines) .
I figure Harrison must’ve had the fire grenades in mind when he came up with the notion of HCl-filled personal protection devices.