A strong corrosive mineral acid, HNO3, the concentrated form of which is capable of producing severe bums of the skin. Swallowing the acid leads to intense burning pain and ulceration of the mouth and throat. Treatment is by immediate administration of alkaline solutions, followed by milk or olive oil.
A colorless, corrosive, poisonous liquid in concentrated form, employed as a caustic. It is widely used in industry and in chemical laboratories.
An acid formed when nitrogen oxides in the air mix with water.