Thermite in a beaker/glass/mob/and that thingie nobody knows

[Tteckk]

Couldn't you just use a timer/igniter, or add a certain chemical to it?

Doesnt work.

If you use a welder on something like Welding Fluid, it should do the same job. Just do it in very small quantities!

tried 5 units in a beaker, No difference from igniting an entire tank.