Inhalation of vapors can cause breathing difficulties and lead to pneumonia and pulmonary edema, which may be fatal. Other symptoms may include coughing, choking, and irritation of the nose, throat, and respiratory tract. Swallowing nitric acid can cause immediate pain and burns of the mouth, throat, esophagus and gastrointestinal tract. Can cause redness, pain, and severe skin burns.
Concentrated solutions cause deep ulcers and stain skin a yellow or yellow-brown color.
Vapors are irritating and may cause damage to the eyes. Contact may cause severe burns and permanent eye damage. Long-term exposures seldom occur due to the corrosive properties of the acid. Persons with pre-existing skin disorders, eye disease, or cardiopulmonary diseases may be more susceptible to the effects of this substance. Measures Immediate first aid treatment reduces the health effects of this substance.