i had a friend some years ago that showed me some of the methods, that then went on to demonstrate how to make smoke bombs, and small incendary devices, and went on to tell me how he'd made bombs and placed them near army bases
(i didn't believe a word of it
)!
sufice to say i 'm not his friend any more!
he did have an unsensible amount of chemical weedkiller in his house!
the chemical firelighting method i use today is matches!
best leave the rest for rainy days in the garage!
put it this way i have tried nearly all those methods and none are anywhere near as reliable as a firesteel, (taking into account safety, weather, enviroment so:
do i carry a bucket of chemicals or a firesteel?