There is more to the story than just nitric acid.

Then the brown gas made is dissolved in water to make nitric acid.

It is used in making nitric acid and for manure.

For a time, the site also produced nylon and nitric acid.

Without that knowledge we really can't understand the conditions under which nitric acid is removed from the atmosphere.

There was a horrible smell of nitric acid in the room.

Give me five minutes to find out that this stuff is nitric acid.

Yeah and then go through again with nitric acid.

Most commercially available nitric acid has a concentration of 68%.

In your equation, we are adding nitric acid to this material.