I was hypothesizing an organism that could create it's own fire with the use of a flamethrower-like organ. I was thinking that this animal has a oxygen-free organ that hold diethylzinc and when the animal feels threatened or such, its sprays out the diethylzinc with instantly ignites when in contact with air, practically acting as a flamethrower. I mainly wondering if this seems like a plausible scenario and if diethylzinc would be a good substance to use.