Water is toxic (deadly) in enough volumn...actually classified as water intoxication. A woman died in a radio station stunt to see who could drink the most water in an hour. Common table salt is very toxic at high concentration which is not a whole lot of salt. Just need to be sensible about this stuff. When I was a kid we used Testor 39 glow fuel which contained a ton of nitrobenzene (the shoe polish smell) which is an aggressive carcinagen. Us old timers are still kicking around even after all this stuff and a bunch of asbestos stuff in our chemistry sets.