Well, I quickly pour hydrochloric acid into a polyethylene bottle and I shut the bottle, according to the ignition test, the fire is greenish, and I think most of the gas are dissolved in the liquid because I kept it shut for a few days.
And yesterday I mix 90 octane petrol with nitric acid (non anhydrous), here's the picture I took yesterday. From the picture you can see that there's two different liquid that can't mix, I haven't figure out of what is the lower and top liquid is. my current hypothesis is that the top is isooctane but one of the hydrogen atom are replaced by nitrate, and heptane nitrate ( I don't know exactly where is the position of the nitrate).