321 Another Chemical Spill in Tucson, AZ.... (twitter.com) posted 1 year ago by cp0707 1 year ago by cp0707 +323 / -2 84 comments share 84 comments share save hide report block hide replies
Look at the color of that smoke! You ever see smoke that color?!!?
It's not smoke. It is the nitrogen dioxide (NO2) fumes from "Red Fuming Nitric Acid." Know in rocketry since the 1940s.