Chemistry Physical Properties Of HNO3 Log in to track progress It is a fuming liquid with a sharp choking smell. It boil at 86°c and melts at -47°c. The denser of the pure acid is 1.52gcm3 It turns blue litmus paper red. ← Previous TrioxoNitrate (V) Acid HNO3 Next → Chemical Properties Of HNO3 Leave a comment Cancel replyYou must be logged in to post a comment.