I’ve got a huge amount of 85% phosphoric acid sitting around, anyone know anything fun to do with it? (I’ve got 15% nitric and X% hydrochloric (I'll titrate it soon.....)aswell)

ooooooooooh
i have an idea, you could UTFSE
but since you live in canada i'm sure the moderators would be willing to overlook your transgrssions if you could go and "teach" a certain zyklon_b a lesson. :P

I'm sure it is useful....
I just can't think what for at the moment.

Teach zyklon_b a lesson? sure! I'll go rig his spark plug with 200g of AP. On that topic, has anyone set off AP with just some NiChrome wire and a battery? I’ve got a system that works well for black/flash powder based 'toys' but don’t want to experiment with something that could send me to hell in 200 pieces. :D

Convert to metaphosphoric acid, absorb on charcoal, heat, pass chlorine gas through it, condense the phosphorus chloride and use to make Tabun.

See, something useful after all. :)