Facility items 003 chemicals (reprise)

Using the discussion from https://github.com/CleverRaven/Cataclysm-DDA/pull/9215 I've put up a tiered system for chemicals and populated it with the first batch of chemicals and a nice bomb to keep things interesting.

In total, I am planning some 30 chemicals (15 out of the way already, 10 more shortly) and some 20 devices (among them: Thermite, RDX, HMTD, TCAP, Powder charge, Hexamine, Smoke curtain, Rocket Candy, Home-made rocket).

Please comment on what do You think of these ideas and tell me if there is something obvious, that I should add to the list.
Granted, you're the chemist here, not I, but recipe durations are on the same time scale as movement (so quicker folks can craft faster).  100 = six seconds   Can I, given the ingredients and a good saucepan, really whip up a batch of thermite in thirty seconds?