Fire color is determined by what is burning, isn't it?
Like stuff burning in pure oxygen is green...
And the hottest region of a flame is clear.
At least that's why I remember...its been a while since I burned random chemicals over a Bunsen burner.
got some nasty burns from the barely visible flames on a bunsen with a proper gas/air mix... imagine a fully lit classroom with white floors, ceilings and pretty much everything else, imagine me setting the burner properly. imagine me scream when 500°C of burning hatred burn my arm as i forgot i turned on the ****er and i cant see the flame. luckily the scars are gone by now since there wasnt a long contact but it still hurt like hell for the whole month when i had to have my arm completely bandaged...
as for burning stuff... if there is someone with a bit less of chemical knowledge, for the love of gods, dont heat up non-diluted acids.
we had a quite perfect bottle of HCL blow up when an idiot from my class decided that it would be fun to watch what happens when he drops it in a bowl of boiling water.
when the ****er dropped it in a interesting sound was heard and then he screamed. it was fun watching the emergency medical service take him off. unfortunately his gonads were fine, so he lives on to spread the stupidity.
the ****er got off with two stitches above his eyebrow from the shards after the bottle blew up
guess who had to clean up the mess afterwards.