Nitric Acid is a highly corrosive mineral acid. Most commercially available nitric acid has a concentration of 68% in water. When the solution contains more than 86% HNO3, it is referred to as fuming nitric acid. Depending on the amount of nitrogen dioxice  present, fuming nitric acid is further characterized as red fuming nitric acid at concentrations above 86%, or white fuming nitric acid at concentrations above 95%.

Wilfley offers solutions to the most demanding pumping problems in the Nitric Acid industry with its industrial pumps built with corrosion resistant materials, and The Wilfley Waterless and Leakless Seal Technology.