Risk of cancer depends on duration and level of exposure.
Inhalation produces damaging effects on the mucous membranes and upper respiratory tract.
Symptoms may include irritation of the nose and throat, and labored breathing. May cause lung edema, a medical emergency. Swallowing can cause severe burns of the mouth, throat, and stomach, leading to death. Can cause sore throat, vomiting, diarrhea. Circulatory collapse with clammy skin, weak and rapid pulse, shallow respirations, and scanty urine may follow ingestion or skin contact.