>>10180967 (lb)
Some notes on nitric acid:
Being a powerful oxidizing acid, nitric acid reacts violently with many organic materials and the reactions may be explosive.
Nitric acid is neutralized with ammonia to give ammonium nitrate.
Nitric acid has been used in various forms as the oxidizer in liquid-fueled rockets. These forms include red fuming nitric acid, white fuming nitric acid, mixtures with sulfuric acid, and these forms with HF inhibitor. IRFNA (inhibited red fuming nitric acid) was one of 3 liquid fuel components for the BOMARC missile.
Being a strong oxidizing agent, nitric acid can react with compounds such as cyanides, carbides, or metallic powders explosively and with many organic compounds, such as turpentine, violently and hypergolically (i.e. self-igniting). Hence, it should be stored away from bases and organics.
Looks like nitric acid could be reason for red explosion cloud and big boom
https://en.wikipedia.org/wiki/Nitric_acid