SOME DAY I will itemise every hazardous material flight hour I recorded. Before takeoff on those missions, it was good practise to scan through the loaded pallets to see what was where. It helped that the most hazardous stuff was nearest to the back ramp. That way, you could open the ramp and push it overboard if things got tense. We weren't too bothered with liquids, even liquids that would explode if combined. We always carried HAZMAT liquids on separate pallets. Even if they leaked, they probably wouldn't mix and ignite.
For liquids to combine into a lethal mixture, you have to ensure there's a controlled mixing. That's difficult when the liquids seep together on the floor of an aircraft. If you're a terrorist and you try to mix liquids in the on-board loo, you will face the same conditions while trying to control your mix. Plus, you have real time pressures while locked in a tiny, cramped, noxious, shaking compartment. Even if you get the mix combined, you probably cannot control it so you risk exploding your face with a pre-cursor that does nothing more than blow blue water all over your clothing.
In short, there are easier ways to blow a hole in the side of an aircraft without exploding anything. You won't find those details on my site but you could figure out what's on offer by scanning the HAZMAT listing on another site. Or look up accident reports of cargo aircraft and read what brought them down while they were last reported straight and level.