Appearance: White powder | very deliquescent | odorless ; Hygroscopic white crystals or powder
HNO3 – Nitric acid
Other names: Aqua fortis, Spirit of niter, Eau forteHydrogen nitrate, Acidum nitricum, Nitric acid (> 70% in water), Fuming nitric acid, Engravers acid, HONO2, Red fuming nitric acid, RFNA, White fuming nitric acid (WFNA)
Appearance: Colorless, yellow or red fuming liquid ; Colourless-to-yellow liquid with pungent odour ; Colorless, yellow, or red, fuming liquid with an acrid, suffocating odor. [Note: Often used in an aqueous solution. Fuming nitric acid is concentrated nitric acid that contains dissolved nitrogen dioxide.]