| Inhalation produces damaging effects on the mucous membranes and upper respiratory tract. May cause ulceration and perforation of the nasal septum. Symptoms may include irritation of the nose and throat, coughing, and labored breathing. May cause lung edema, a medical emergency. May produce pulmonary sensitization or allergic asthma. | Corrosive. Swallowing can cause severe burns of the mouth, throat, and stomach, leading to death. Can cause sore throat, vomiting, diarrhea. May cause abdominal pain, dizziness, intense thirst, shock and liver damage. May be followed by circulatory collapse or toxic nephritis. |